ANNOTATED SYSTEMATIC LIST 



Listed in the order species appear in the key. 



Family NYMPHONIDAE 



Nymphon kirtipes Bell, 1853. Generally in 

 deeper waters, 45 to 400 m, off northern 

 New England and northward. 



Nymphon grossipes (0. Fabricius?) Kroyer, 

 1780. Commonest species of Nymphon in 

 New England. Collected from 20 to 1,050 m. 



Nymphon macrum Wilson, 1880. Mostly north 

 of Cape Cod, though some records exist from 

 as far south as Florida. Reported from 64 

 to 1,540 m; muddy bottoms. 



Nymphon stromi Kroyer, 1844. Taken in New 

 England from 12 to over 900 m. Occurs 

 mostly north to latitude 82°, but there are 

 a few records from south to Florida. 



Nymphon longitarse Kroyer, 1844. Occurs north 

 of Cape Cod, especially in the Gulf of Maine, 

 from 30 to 280 m. 



Family AMMOTHEIDAE 



Achelia spinosa (Stimpson) Wilson, 1853. Con- 

 sidered uncommon. Recorded from Block 

 Island to New Brunswick in depths less than 

 37 m. Specimens #1220C and #1220N, in 

 the Gray Museum, Marine Biological Lab- 

 oratory, Woods Hole, Mass., collected at 

 Fishing Ledge, Cape Cod Bay. See com- 

 ments under A. scabra. 



Achelia scabra Wilson, 1880. Very few speci- 

 mens in existence, all from localities north 

 of Cape Cod, Mass. Two specimens in the 

 Gray Museum of the Marine Biological Lab- 

 oratory (lot # 1220D) collected at Fishing 

 Ledge in Cape Cod Bay, at a depth of 25.9 m. 

 As happens for several of the few preserved 

 specimens in existence, these were collected 

 together with A. spinosa. A. scabra re- 

 portedly differs from A. spinosa in having: 

 (1) reduced length of auxiliary claws, (2) 

 shorter lateral processes which are closely 

 pressed together, (3) reduced spinous tu- 

 bercles on the coxa, and (4) large tubercles 

 on the posterior outer corners of the lat- 

 eral processes. None of these characters 

 seem to be consistent, except for length of 



auxiliary claw. Though no gradation in 

 length of auxiliary claw is obvious, the de- 

 gree of spination, size, and general appear- 

 ance does intergrade to such an extent as to 

 cast some doubt on whether A. scabra and 

 A. spinosa are separate species. 

 Tanystylum orbiculare Wilson, 1878. A rela- 

 tively common littoral species found in a 

 variety of fouling communities from Cape 

 Cod south to the Caribbean and Brazil. 

 Found also on floating Sargassum. 



Family CALLIPALLENIDAE 



Callipallene brevirostris (Johnston), 1837. A 

 relatively common littoral species found 

 from Cape Cod to Florida. 



Pseudopallene circularis (Goodsir), 1842. An 

 uncommon species taken in deeper shelf 

 water (22 to 100 m) from Cape Cod north 

 to Arctic. Rarer in southern part of range. 



Family PHOXICHILIDIIDAE 



Phoxichilidium femoratum (Rathke), 1799. A 

 common species found in the intertidal zone 

 to 100 m from Long Island Sound to Green- 

 land. 



Anoplodactylus lentus Wilson, 1878. A common 

 species from the south shore of Cape Cod 

 to the Caribbean, from the intertidal zone 

 to the shelf edge. 



Anoplodactylus petiolatus (Kroyer), 1844. A. 

 petiolatus and A. parvus may be the same. 

 Small differences in size have been used to 

 differentiate the two, and a careful exam- 

 ination of a large series probably would re- 

 veal gradations. Both have been taken from 

 floating Sargassum. Represented in the 

 Gray Museum by lots #548 (A. petiolatus) 

 and #2094 (A. parvus). 



Anoplodactylus parvus Giltay, 1934. See com- 

 ments under A. petiolatus. 



Family ENDEIDAE 



Endeis spinosa (Montagu), 1808. Specimens 

 usually come from pelagic Sargassum weed 

 washed ashore. Not common in the New 

 England area. 



