250 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 97 
Ar. Three darealimink tubpreles.2 2 34022 6 oo tea et oe 7. 
i wo.dorss! trunk tubercles 2050 805 et Lee ee te 5 
5. Without trunk segmentation; numerous compound spines__-_-____________ 6 
Cephalic segment separated by suture; without compound spines (Falkland 
Eslands) <i cc5 fee 2 ee) denticulata Gordon (1932) 
6. Auxiliary claws minute (Tortugas, South Carolina, Baja California, Galdpa- 
RI oop NOR DEE Se IR Se duodorsospinosa (p. 250) 
Auxiliary claws one third as long as terminal claw (East Indies, Japan). 
muscosa Loman (1908) 
7. Without terminal spines on dorsal trunk tubercles__.__._....._..._-_________ 8 
Large terminal spine on trunk tubercles (Capetown) _-abstrusa Loman (1923) 
8. Auxiliary claw well developed; processes on tibial joints confined to proximal 
et (Qucenslang) 12. ee oo as acinacispinatus Williams (1933) 
Auxiliary claws minute; processes on tibial joints generally distributed (Califor- 
BiG) ote bon eee. 2b 2 ee spinosissima (Hall, 1912) 
NYMPHOPSIS ANARTHRA Loman 
Nymphopsis anarthrus Loman, 1928a, pp. 39-42, 1 fig. 
This species is not represented in the collections examined. It 
differs from the following species in having a 1-jointed scape and in 
having dorsal trunk tubercles which are noticeably taller than the eye 
tubercle. Loman’s inadequate figure suggests a different arrange- 
ment of spiny tubercles on the tibiae, especially the lack of a saddle 
or bare spot on the middle of the first tibia, and a longer abdomen. 
Nymphopsis anarthra was collected from Tortuga Island, north of 
Venezuela. 
NYMPHOPSIS DUODORSOSPINOSA Hilton 
Ficure 40 
Nymphopsis duodorsospinosa HitTon, 1942b, pp. 303-305, pl. 45. 
RECORD OF COLLECTIONS 
Folly River, S. C., Apr. 24, 1935, G. R. Lunz coll., 1 male, 1 female. 
Tortugas, Fla., June 1908, 8-10 fathoms, among Bryozoa, L. J. Cole coll., 1 
female. 
Identification of these specimens was confirmed by direct com- 
parison with the type specimens, from which they differ only in their 
slightly smaller size and shorter abdomen. 
Description (based on type material and Atlantic specimens)*.— 
Trunk: Broadly oval in outline, lateral processes well separated. 
Dorsal trunk tubercles two, covered with small spines but not sharply 
pointed and without a terminal spine, about the same height as the 
eye tubercle. Eye tubercle erect, about twice the diameter of the 
trunk tubercles, truncate at tip. Eyes distinct, near apex. On the 
median dorsal end of each lateral process is a low spiny tubercle, it is 
inconspicuous on the last pair of lateral processes. 
% Hilton, 1942b, p. 304, designates a female as the type, but the “holotype” now at the Allan Hancock 
Foundation of the University of Southern California, is a male. 
