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Fauchald, K. (1972). Benthic polychaetous annelids from deep water off western Mexico and adjacent areas in the Eastern Pacific Ocean. Allan Hancock Monographs in Marine Biology. 7: 1-575.
49781
Fauchald, K.
1972
Benthic polychaetous annelids from deep water off western Mexico and adjacent areas in the Eastern Pacific Ocean
Allan Hancock Monographs in Marine Biology
7: 1-575
Publication
World Polychaeta Database (WPolyDb)

[From Introduction]

Polychaetous annelids from deep water off western Mexico were first collected by the ALBATROSS expeditions of 1886-91 and 1911. The material from these expeditions was treated by Chamberlin (1919) and Treadwell (1923). Chamberlin named a large number of new species, most of which have not been recovered from other areas and indicate the presence of a deep-water fauna characteristic of the eastern Pacific Ocean.

The Allan Hancock Foundation collected benthic organisms off western Mexico from 1932 to 1942 and during a series of cruises since 1948. These collections have been treated by Hartman and Fauchald in a number of papers. The Scripps Institution of Oceanography has had a series of cruises, especially in the Gulf of California, where benthic samples were taken. Parts of this material were treated by Parker (1964a, 1964b) in papers dealing with the benthic ecology of the gulf and adjacent areas. Parker's study was based mainly on the mollusks; the polychaetous annelids are treated here for the first time.

Two cruises with the VELERO IV of the Allan Hancock Foundation were undertaken in 1967 and 1970 to investigate further the benthic fauna off western Mexico. The material from these two expeditions forms the basis of this study, but other materials have been included as indicated below.

Forty-nine polychaetes in fourteen families were previously known from deep water off western Mexico. These are listed in Table 1 with reference to the records for each species. The present collection includes 227 species in forty-three families. Seventy-six new species are named and revisions are made of some taxa, where materials and previous investigations permitted complete surveys.

America, Central
California quadrant
Eastern Pacific warm temperate to tropical
Systematics, Taxonomy
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Admetella dolichopus Chamberlin, 1919 accepted as Admetella hastigerens Chamberlin, 1919 (source of synonymy)
Admetella hastigerens Chamberlin, 1919 (basis of record)
Aedicira alisetosa Fauchald, 1972 (original description)
Aedicira longicirrata Fauchald, 1972 (original description)
Aglaophamus eugeniae Fauchald, 1972 (original description)
Aglaophamus paucilamellata Fauchald, 1972 (original description)
Aglaophamus surrufa Fauchald, 1972 (original description)
Amage delus (Chamberlin, 1919) (basis of record)
Ancistargis verrucosa Fauchald, 1972 (original description)
Anobothrus mancus Fauchald, 1972 (original description)
Aricidea crassicapitis Fauchald, 1972 (original description)
Austrophyllum exsilium Fauchald, 1972 (original description)
Bathyglycinde cedroensis Fauchald, 1972 (original description)
Bathyglycinde mexicana Fauchald, 1972 (original description)
Califia mexicana Fauchald, 1972 (original description)
Clymaldane laevis Fauchald, 1972 accepted as Notoproctus laevis (Fauchald, 1972) (original description)
Cossura brunnea Fauchald, 1972 (original description)
Cossura rostrata Fauchald, 1972 (original description)
Cossura sima Fauchald, 1972 (original description)
Diplocirrus micans Fauchald, 1972 (original description)
Ecamphicteis Fauchald, 1972 (original description)
Ecamphicteis elongata Fauchald, 1972 (original description)
Ephesiella brevicapitis (Moore, 1909) (basis of record)
Eulalia anoculata Fauchald, 1972 accepted as Eulalia lapsus Pleijel, 1991 (original description)
Fabrisabella similis Fauchald, 1972 (original description)
Fauveliopsis rugosa Fauchald, 1972 (original description)
Lysippe mexicana Fauchald, 1972 (original description)
Maldane monilata Fauchald, 1972 (original description)
Neanthes mexicana Fauchald, 1972 (original description)
Ninoe fuscoides Fauchald, 1972 accepted as Cenogenus fuscoides (Fauchald, 1972) (original description)
Ninoe longibranchia Fauchald, 1972 (original description)
Notomastus abyssalis Fauchald, 1972 (original description)
Notomastus cinctus Fauchald, 1972 (original description)
Paraonides cedroensis Fauchald, 1972 (original description)
Paraonis pycnobranchiata Fauchald, 1972 (original description)
Paraprionospio alata (Moore, 1923) (basis of record)
Pherusa abyssalis Fauchald, 1972 (original description)
Polychaeta (identification resource)
Prionospio treadwelli Hartman, 1951 accepted as Paraprionospio alata (Moore, 1923) (source of synonymy)
Sabellides delus Chamberlin, 1919 accepted as Amage delus (Chamberlin, 1919) (source of synonymy)
Scoloplos (Leodamas) mazatlanensis Fauchald, 1972 (original description)
Sigambra setosa Fauchald, 1972 (original description)
Sphaerephesia Fauchald, 1972 (original description)
Sternaspis scutata (Ranzani, 1817) (source of synonymy)
Sthenolepis racemosa Fauchald, 1972 accepted as Neoleanira racemosa (Fauchald, 1972) (original description)
Sthenolepis spargens Fauchald, 1972 (original description)
Subadyte mexicana Fauchald, 1972 (original description)
Therochaeta flabellata (Sars in Sars, 1872) (new combination reference)
Nontype AHF, geounit Gulf of California, identified as Notomastus abyssalis Fauchald, 1972
Nontype AHF, geounit Gulf of California, identified as Notomastus abyssalis Fauchald, 1972
Nontype AHF, geounit Gulf of California, identified as Notomastus abyssalis Fauchald, 1972
Nontype AHF, geounit Gulf of California, identified as Notomastus abyssalis Fauchald, 1972
Nontype AHF, geounit Gulf of California, identified as Notomastus abyssalis Fauchald, 1972
Nontype AHF, geounit Gulf of California, identified as Notomastus cinctus Fauchald, 1972
Holotype LACM, geounit Isla Cedros, identified as Paraonides cedroensis Fauchald, 1972
Holotype LACM, geounit Isla Cedros, identified as Aricidea crassicapitis Fauchald, 1972
Nontype AHF, geounit Mexico, identified as Notomastus cinctus Fauchald, 1972
Nontype AHF, geounit Mexico, identified as Notomastus cinctus Fauchald, 1972
Nontype AHF, geounit Mexico, identified as Notomastus cinctus Fauchald, 1972
Nontype AHF, geounit Mexico, identified as Notomastus abyssalis Fauchald, 1972
Nontype AHF, geounit Mexico, identified as Notomastus abyssalis Fauchald, 1972
Holotype LACM AHF, geounit Baja California Sur, identified as Eulalia anoculata Fauchald, 1972
Nontype LACM AHF, geounit Baja California Sur, identified as Eulalia anoculata Fauchald, 1972
Holotype LACM AHF, geounit Mexico, identified as Austrophyllum exsilium Fauchald, 1972
Nontype LACM AHF, geounit Mexico, identified as Austrophyllum exsilium Fauchald, 1972
Holotype LACM AHF POLY 1012, geounit Gulf of California, identified as Notomastus abyssalis Fauchald, 1972
Holotype LACM AHF POLY 1026, geounit Gulf of California, identified as Notomastus cinctus Fauchald, 1972
 Depth range

1536.2 m. [details]

 Depth range

1189-2900 m. [details]

 Depth range

2780-3511 m. [details]

 Depth range

1098-2195 m. [details]

 Depth range

1098-2195 m. [details]

 Depth range

1481-1536 m. [details]

 Depth range

1723-1750 m. [details]

 Depth range

1377-1417 m. [details]

 Depth range

173.7-210.3 m. [details]

 Depth range

2260-2890 m. [details]

 Depth range

2652-3475 m.  [details]

 Depth range

1723-1750 m. [details]

 Depth range

894 m. [details]

 Depth range

From 1481.3 to 3751 m. [details]

 Diagnosis

Original diagnosis by Fauchald (1972: 246): ''The thorax has ten setigers of which the first setiger has notopodial ... [details]

 Diagnosis

Original diagnosis by Fauchald (1972: 246): ''The thorax has eleven setigers with pointed setae only; the first ... [details]

 Distribution

Pacific Ocean: western Mexico. [details]

 Distribution

Pacific Ocean: western Mexico, from Cedros Island and from Baja California, along the mainland coast to Acapulco; ... [details]

 Distribution

Pacific Ocean: western Mexico (off the southern tip of Baja California; Tres Marias Basin). [details]

 Distribution

Pacific Ocean: western Mexico (off Cedros Island; off the southern tip of Baja California Sur). [details]

 Distribution

Pacific Ocean: western Mexico (off Cedros Island; off the southern tip of Baja California Sur). [details]

 Distribution

Pacific Ocean: off Islas Tres Marias (Western Mexico). [details]

 Distribution

Pacific Ocean: off Isla Cedros (Baja California, Western Mexico). Known only from the type locality. [details]

 Distribution

Pacific Ocean: Salsipuedes Basin (Gulf of California). [details]

 Distribution

Pacific Ocean: central part of the Gulf of California. [details]

 Distribution

Pacific Ocean, Gulf of California, Mexico (from off Cabo Falso and the Tres Marias Islands through the southerm and ... [details]

 Distribution

Pacific Ocean: western Mexico (Baja California; Nayarit; Guerrero).  [details]

 Distribution

Pacific Ocean: off Oregon (USA); off Cedros Island (Western Mexico). [details]

 Distribution

Pacific Ocean: Guaymas Basin (Gulf of California). [details]

 Distribution

Pacific Ocean: Mexico (Pacific coast of Baja California; Gulf of California). [details]

 Etymology

Not stated in the original description. The specific epithet dubia (masculine: dubius) is a Latin adjective meaning ... [details]

 Etymology

Not stated. The specific epithet crassicapitis is composed by the Latin adjective crassi, form of crassus and ... [details]

 Etymology

Not stated in the original description. The specific epithet exsilium is a Latin noun meaning 'exile' or ... [details]

 Etymology

Not stated in the original description. The specific epithet anoculata is composed by the feminine Latin adjective ... [details]

 Etymology

Not explicitly stated in the original description. The specific epithet mexicana refers to the type locality of the ... [details]

 Etymology

Not explicitly stated in the original description. The specific epithet mexicanus refers to the type locality of ... [details]

 Etymology

Not stated. The name Neonotomastus is composed by the Latin prefix neo-, meaning 'new' or 'recent', and the name of ... [details]

 Etymology

Not stated, unclear. The name Notodasus is composed by the prefix of Greek origin noto-, meaning 'the back', ... [details]

 Etymology

Not stated. The specific epithet magnus is a Latin adjective meaning 'large' or 'big', and refers presumably to the ... [details]

 Etymology

The specific epithet abyssalis, Latin adjective meaning 'of, pertaining to, or resembling an abyss', refers to the ... [details]

 Etymology

The specific epithet cinctus, Latin noun meaning 'belt', refers to the continuous ring around the body produced by ... [details]

 Etymology

The specific epithet cedroensis refers to the type locality of the species, located off Cedros Island (= Isla de ... [details]

 Etymology

The generic name Paraxionice is composed by the prefix of Greek origin para-, meaning 'close to', and the name of ... [details]

 Etymology

Not stated in the original description. The specific epithet artifex is a Latin noun meaning 'craftsman', and ... [details]

 Etymology

Not stated in the original description. The specific epithet abyssalis is a Latin adjective meaning 'of or ... [details]

 Habitat

Bathyal depths. [details]

 Habitat

Muddy sediments at bathyal and abyssal depths.  [details]

 Habitat

Bathyal depths. [details]

 Habitat

Rock, at bathyal depths. [details]

 Habitat

Rock, at bathyal depths. [details]

 Habitat

Type of sediment not stated, at slope depths. [details]

 Habitat

Mud, at bathyal depths (1723-1750 m). [details]

 Habitat

Type of sediment not stated, at bathyal depths. [details]

 Habitat

Sand, mud, and pebbles, in upper slope depths. [details]

 Habitat

Deep water sediments.  [details]

 Habitat

Deep water sediments.  [details]

 Habitat

Green mud with foraminiferans, and sandy silt, at bathyal depths. [details]

 Habitat

Bathyal depths, type of sediment not stated. [details]

 Habitat

Clay, mud and rocks, at slope and bathyal depths. [details]

 Holotype

Deposited at the Natural History Museum of Los Angeles County, Los Angeles, USA. [details]

 Holotype

Deposited at the Natural History Museum of Los Angeles County, Los Angeles (LACM AHF Poly 1006). [details]

 Reproduction

The holotype is a female with large eggs in the body cavity. [details]

 Specimen

Natural History Museum of Los Angeles County, Los Angeles (USA). [details]

 Specimen

Natural History Museum of Los Angeles County, Los Angeles (USA). [details]

 Type locality

11 miles, 320° T. from Punta Piedras light, Isla San Juanito, western Mexico, Pacific Ocean (21°53'00''N, ... [details]

 Type locality

Off Cedros Island, 29 mi. from Natividad Island light, Baja California, Mexico, Pacific Ocean (from 27º24'00''N, ... [details]

 Type locality

13.8 miles, 217°T from Punta Oeste, Isla Maria Magdalena, western Mexico, Pacific Ocean (21°15'00''N, ... [details]

 Type locality

19 miles, 170° T. from Natividad Island, Baja California Sur, western Mexico, Pacific Ocean (from 27°35'45''N, ... [details]

 Type locality

19 miles, 170° T. from Natividad Island, Baja California Sur, western Mexico, Pacific Ocean (from 27°35'45''N, ... [details]

 Type locality

273.5° T from Natividad Island light, off Isla Cedros, Baja California, Western Mexico, Pacific Ocean (27.9069°, ... [details]

 Type locality

5 miles, 93° T. from N end of Isla de las Animas, Western Mexico, Salsipuedes Basin, Gulf of California, Pacific ... [details]

 Type locality

3/4 mi. SW of Punta Arena, Carmen Island, Gulf of California, Pacific Ocean (from 25º46'00''N, 111º15'00''W to ... [details]

 Type locality

Pacific Ocean, Gulf of California, western Mexico, Baja California Sur, Isla San José, 33.5 miles 053ºT from ... [details]

 Type locality

Pacific Ocean, Gulf of California, wsetern Mexico, Baja California Sur, Cabo Falso (22º32.2'N, 109º43.0'W to ... [details]

 Type locality

Off Cedros Island, 26.3 mi. 273.5ºT from Natividad Island light, Baja California, Mexico, Pacific Ocean ... [details]

 Type locality

Guaymas Basin, Gulf of California, western Mexico, Pacific Ocean (provided geocoordinates 27°03'N, 112°18'W place ... [details]

 Type locality

29 miles, 180.5° T. from Isla Natividad light to Mid Pt., Baja California, Mexico, Pacific Ocean (from 27.4°, ... [details]

 Type material

Holotype deposited at the Natural History Museum of Los Angeles County, Los Angeles, USA. [details]

 Type material

Holotype (LACM-AHF Poly 031) deposited in the Natural History Museum of Los Angeles County, Los Angeles, USA. [details]

 Type material

Natural History Museum of Los Angeles County, Los Angeles, USA (LACM-AHF POLY 1012).  [details]

 Type material

Holotype deposited at Natural History Museum of Los Angeles County, Los Angeles (LACM AHF POLY 1026).  [details]

 Type material

Holotype deposited at the Natural History Museum of Los Angeles County, Los Angeles, USA. [details]

 Type species

Sphaerephesia longisetis has page precedence but Fauchald named the second species in his monograph, Sphaerephesia ... [details]

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