WoRMS source details

Maciolek, Nancy J.; Blake, James A. (2021). New species of Microspio Mesnil, 1896 (Annelida: Spionidae), with additions to the description of M. pigmentata (Reish, 1959) and comparative notes on all members of the genus. Proceedings of the Biological Society of Washington. 134(1): 265-293.
415157
10.2988/0006-324x-134.1.265 [view]
urn:lsid:zoobank.org:pub:D24F8834-3230-469D-A2CD-759B018EF8AB [view]
Maciolek, Nancy J.; Blake, James A.
2021
New species of Microspio Mesnil, 1896 (Annelida: Spionidae), with additions to the description of M. pigmentata (Reish, 1959) and comparative notes on all members of the genus
Proceedings of the Biological Society of Washington
134(1): 265-293
Publication
World Polychaeta Database (WPolyD).
Available for editors  PDF available [request]
Three new species of Microspio were found in collections from a range of depths including shallow water in Bermuda, the continental shelf off Massachusetts, and deep water in the South China Sea off Brunei. Microspio fischeri, new species, is associated with shallow water sponges in Bermuda where it is a prey species of a predatory syllid; it is characterized by the medial placement of the first pair of branchiae as well as unusual notopodial capillaries in anterior chaetigers and enlarged notopodial lobes in posterior chaetigers. Microspio lydonia, new species, from the continental shelf on the east coast of the United States is distinguished from M. pigmentata (Reish, 1959) from the west coast by differences in the structure of the nuchal organs and hooded hooks, pigmentation, and Methyl Green staining patterns. Additions to the description of M. pigmentata include illustration of the nuchal organs and dorsal ciliary bands. Microspio ariena, new species, from deep water in the South China Sea off Brunei has enlarged branchiae with large glands that stain deeply with Methyl Green on a few anterior chaetigers, followed by much smaller branchiae on additional chaetigers. The three new species bring the total of described species in the genus to twenty-one, although some species remain problematic. A table comparing important characteristics of all 21 known species of Microspio is included.
Systematics, Taxonomy
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2021-11-02 22:10:11Z
created

Holotype MCZ 162299, geounit Bermuda, identified as Microspio fischeri Maciolek & Blake, 2021
Holotype MCZ 162300, geounit South China Sea, identified as Microspio ariena Maciolek & Blake, 2021
Holotype USNM 1655928, geounit Georges Bank, identified as Microspio lydonia Maciolek & Blake, 2021
 Etymology

authors: named Microspio ariena from "Latin ariena, meaning fruit of the plantain or banana; used as a noun in ... [details]

 Etymology

authors: Microspio fischeri "is named in honor of Dr. Albrecht Fischer, who collected the organisms" [details]

 Etymology

authors: Microspio lydonia "species name refers to Lydonia Canyon, where much of the material was collected [by R/V ... [details]

 Status

Söderström (1920: 248) named the type species of Microspio as Spio mecznikowianus, perhaps because he included ... [details]

 Type designation

Type species Spio mecznikowianus Claparede 1870 by subsequent designation. Mesnil created Microspio for the ... [details]

 Type locality

off Brunei, Borneo Island, 5.7275 N, 114.2461 E, (05 43.652 N, 114 14.7680 E), deep sea at 1150 m [details]

 Type locality

Near Ferry Point, Bermuda, 32.3634 N, 64.7138 W, intertidal, associated with Ircinia sp. sponges. The coordinates ... [details]

 Type locality

At head of Lydonia Canyon, Georges Bank, east of Cape Cod, Atlantic Ocean, 40.4783, -67.7117 (40 28.70' N, 67 ... [details]

 Type specimen

The species was described from a single incomplete specimen, 0.4 mm wide, 1.5 mm long for 13 chaetigers. [details]