Pseudobranchiomma Jones, 1962
publication ID |
https://doi.org/ 10.1080/00222930110071705 |
persistent identifier |
https://treatment.plazi.org/id/157587E0-A179-FF85-DDF6-FB5CFBCA89BB |
treatment provided by |
Felipe |
scientific name |
Pseudobranchiomma Jones, 1962 |
status |
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Genus Pseudobranchiomma Jones, 1962 View in CoL , emended Knight-Jones, 1994
Type species. Pseudobranchiomm a emersoni Jones, 1962 .
Diagnosis. Base of crown involuted midventrally, each side forming partial circle or (rarely) spiral; radioles with or without compound eyes and usually with paired longitudinal anges with or without serrations; interradiolar web present; dorsal lips tapered and grooved (with midrib support), webbed to base of adjacent dorsal rachis (gure 1H dl), with or without pinnular support; ventral lips rounded (gure 1H vl); collar with two ventral lappets separated by midline cleft; dorsal collar margins usually free and well separated (not forming collar pockets by fusion to sides of midline dorsal groove); collar cleft adjoined to short parallel lamellae leading to bulbous paired ventral sacs outside crown base; anterior margin of rst ventral shield inde nite, straight or M-shaped with small midline embayment or cleft; all thoracic chaetae in compact fascicles with scarcely geniculate superior chaetae arranged in arc anterodorsal to compact group of more geniculate inferior chaetae wider at knee; thoracic and abdominal uncini avicular, with end of shaft to breast somewhat shorter than distance between breast and crest; companion chaetae absent; abdominal fascicles (except most recent ones near pygidium) arising within conical
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