166 STALK-EYED CRUSTACEA. 
In the subjoined list I have arranged the specimens, in so far as their 
variability admits, in accordance with the division into varieties above made. 
Forma typica. 
Station 3358. 555 fathoms. 1 fem. 
2h OCT IEA = at ie 
O34 Boe | LANL 2 1 male. 
G3 Beteline ley 1 fem. ovig. 
Bo eee, aise 49 1 fem. 
Var a. 
Station 3431. 
Station 3414. 
995 fathoms. 
2232 fathoms. 
1 fem. ovig. 
Var B. 
3 males. 
6a ie ASO 1 male, 1 fem. ovig. 
cc 3418; 660 2 males. 
$6 3453r AAS A 1 fem. 
Var. y. 
Station 3593. 1020 fathoms. 1 male. 
ty 3480.1 862 0 =e 1 fem. ovig. 
ee 1 3436; 905" at et Re we 
66 ? ? iti “cc “ 
In the typical form the short rostrum overhangs the face like a hood. 
Upon two species with rostra like this, Bate based his genus Zropiocaris.* 
T. plunipes, the type of the genus, appears to be the same as Smith’s Lphyrina 
benedicti.t Neither Ephyrina nor Tropiocaris seem to be separated from Acan- 
thephyra on sufficient grounds. 
A. curtirostris in its typical form resembles A. tenuipes ( Tropiocaris tenuipes 
Bate), but judging from Bate’s figure and description, it differs from the 
latter in the following regards: the presence of a prominent tooth on the 
lower edge of the rostrum, and a dorsal carina on the second abdominal seg- 
ment; the great prominence of the tubercle on the inner side of the eye- 
stalk ; and the shape of the antero-lateral margins of the carapace, which 
are much less oblique than in A. ¢enuipes. 
* Rep. Challenger Macrura, p. 834, 1888. 
+ Proc. U.S. Nat. Mus., VII. 506, 1885; Ann. Rep. U.S. Fish Comm. for 1885, p. 674, Plate XIV. 
Fig. 8, Plate XVI. Fig. 4, 1886. 
