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Delgado-Blas, Víctor Hugo ; Díaz-Díaz, Oscar. (2016). Redescription of two species and five new species of Dispio Hartman, 1951 (Spionidae: Polychaeta) from the eastern Pacific Coast and Caribbean Sea, with a review of the genus. Zootaxa. 4178(1): 151-181.
259020
10.11646/zootaxa.4178.2.1 [view]
urn:lsid:zoobank.org:pub:C533EE2A-5831-49A2-A4ED-2E7CD94EC663 [view]
Delgado-Blas, Víctor Hugo ; Díaz-Díaz, Oscar
2016
Redescription of two species and five new species of <em>Dispio</em> Hartman, 1951 (Spionidae: Polychaeta) from the eastern Pacific Coast and Caribbean Sea, with a review of the genus
Zootaxa
4178(1): 151-181
Publication
World Polychaeta Database (WPolyDb)
Available for editors  PDF available
Available type material of Dispio uncinata Hartman, 1951 and D. mororoi Gibbs, 1971, as well as newly collected material from Venezuela and material deposited in the Los Angeles County Museum of Natural History, was examined. Several important differences were found between D. uncinata, D. mororoi, the new material deposited in the museum and the newly collected material from Venezuela, Panama and California. Dispio uncinata and D. mororoi are redescribed and five new species are also identified and described: D. anauncinata sp. nov., D. lenislamellata sp. nov., and D. longibranchiata sp. nov. are from Southern California, D. panamensis sp. nov. from Panama, and D. bescanzae sp. nov. from Venezuela. Morphological differences between species were recorded, particularly in reference to the shape of prostomium, and caruncle, size of peristomium, shape of notopodial and neuropodial postchaetal lamellae, branchiae from anterior chaetigers fused completely or partially to the notopodial lamellae, presence or abscent of accessory branchial pairs, structure of notopodial and neuropodial chaetae, notopodial and neuropodial lamellae overlapping or touching and other consistent characters. Results of the review of the material from Southern California indicates that D. uncinata is not found in this area of the Pacific, and we recommend that the wide distribution of this species should be taken with caution especially for those distant records from the type locality. A key to all species of Dispio is provided.
America, Central
America, North
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2016-10-25 01:25:45Z
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Dispio Hartman, 1951 (taxonomy source)
Dispio uncinata Hartman, 1951 (redescription)
 Depth range

Intertidal to 28.8 m. [details]

 Depth range

Shallow subtidal depths. [details]

 Depth range

Subtidal depths, to 5.4 m. [details]

 Depth range

5 cm deep in a sandy beach. [details]

 Depth range

Intertidal. Recorded from the intertidal to 92 m depth, but some of these records need to be re-examined. [details]

 Distribution

Northeastern Pacific, USA: California (counties of Santa Barbara and Los Angeles). [details]

 Distribution

Atlantic coast of Venezuela (Gulf of Paria; Gulf of Cariaco). [details]

 Distribution

Northeastern Pacific: California (region near the border between USA and Mexico). [details]

 Distribution

Northeastern Pacific: California (region near the border between USA and Mexico). [details]

 Distribution

Pacific Ocean: Panama (Punta Culebra). [details]

 Distribution

Western Atlantic Ocean: Massachusetts to Florida; Gulf of Mexico, Caribbean Sea. Records from other localities ... [details]

 Editor's comment

The type locality is stated by the authors to correspond to ''Sta. 6241-59'' of the Cruise R/V Velero IV, when it ... [details]

 Etymology

The specific epithet anauncinata is composed by the Greek prefix ana-, meaning 'similar to', followed by the ... [details]

 Etymology

''The species is named after Díaz-Díaz's mother-in-law, who recently passed away, and is dedicated to her and all ... [details]

 Etymology

The specific epithet lenislamellata is composed by the Latin adjectives lenis, meaning 'smooth', and lamellata, ... [details]

 Etymology

The specific epithet longibranchiata is a New Latin ajective meaning 'having long branchiae', and is composed by ... [details]

 Etymology

The specific epithet panamensis is a New Latin adjective and refers to the type locality of the species, indicating ... [details]

 Habitat

Sandy sediments and tide pools, at intertidal to subtidal depths. [details]

 Habitat

Very fine sand and soft sediments in general, at shallow subtidal depths. [details]

 Habitat

Coarse gray sand, at subtidal depths. [details]

 Habitat

Medium-grained gray sand, at subtidal depths. [details]

 Habitat

Sandy beach, quartz sand (80% fine, 19% medium sand, 1% shell fragments). [details]

 Habitat

Intertidal sandy beaches. [details]

 Reproduction

Ovigerous segments from about chaetiger 52 to end of the fragment in paratype (LACM AHF POLY 0635). Eggs are large, ... [details]

 Type locality

Carpinteria State Beach, Carpinteria, Santa Barbara County, Southern California Bight, California, USA, NE Pacific ... [details]

 Type locality

Güiria, Gulf of Paria, Atlantic coast of Venezuela (10.5661, -62.7392), shallow subtidal, soft sediment. [details]

 Type locality

San Diego County, 0.3 miles, 270° T from the US-Mexico Border Monument, California, USA, Southern California ... [details]

 Type locality

San Diego County, 0.5 miles, 270° T from the US-Mexico Border Monument, California, USA, Southern California ... [details]

 Type locality

Punta Culebra, Naos Island, Panama, Eastern Pacific (8.9131°, -79.5294°), 0.05 m deep in a sandy beach of quartz ... [details]

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