New taxa and taxonomic revisions to the Poraniidae (Valvatacea; Asteroidea) with Comments on Feeding Biology
Author
Mah, Christopher L.
Author
Foltz, David W.
text
Zootaxa
2014
3795
3
327
372
journal article
45800
10.11646/zootaxa.3795.3.7
f0614c34-e456-4231-a5c0-281479168dac
1175-5326
252134
77AB3EAA-DA13-4C8D-885D-EB9F5F14DE34
Poraniomorpha abyssicola
(
Verrill 1895
)
Figures 7
A–C, F
Rhegaster abyssicola
.
Verrill 1895
: 140
Poraniomorpha abyssicola
.
Grieg 1907
: 42
Poraniomorpha
(
Poraniomorpha
)
abyssicola
. Clark, A. M. & Downey, M.E. 1993: 215
Taxonomic comments.
This species is distinguished from
P. t u m i d a
and
P. bidens
by the presence of two to three inferomarginal spines present along the actinolateral fringe (
Fig. 7
B). The abactinal surface is covered by evenly distributed, tiny granuliform spinules (
Fig. 7
F). The actinal surface is covered by an abundance of short, pointed spinelets (length=>1.0 mm) (
Fig. 7
E). A single curved furrow spine is present in addition to four or five irregularly arranged subambulacral spines.
Occurrence.
North Atlantic (west side) from latitude of Cape May to Cape Charles (c. 38.5–37°N), Hudson Caynon
2976–3740 m
.
Material examined.
USNM
8140 (
Holotype
) Virginia Beach, Virginia, North Atlantic Ocean.
2995–3740 m
, Coll. R/V
Albatross
10 Sept. 1884
(1 dry spec. R=3.5, r=1.4);
USNM
E 16102 Rise off North East of Hudson Canyon, New
Jersey
, North Atlantic, 38º25” 06’N, 70º 52” 30’W,
2976–2995 m
. Coll. R/V
Chain
5 July 1975
(2 dry specs. R=4.4, r=1.6; R=3.2, r=1.3)