122 H. J. HANSEN. 
established by Stebbing of the type for a new genus, 
Nezsicopea, which belongs to the eubranchiate Sphero- 
mine. Among the species not seen by me, Cymodoce 
tuberculosa (Stebb.), C. uncinata (Stebb.), and C. bica- 
rinata (Stebb.) have been correctly referred. Cym.armata 
(M.-Edw.) has been transferred to Zuzara by Haswell, but 
this reference is, in my opinion, rather dubious, though I 
cannot offer any better interpretation. Above it is mentioned 
that Exospheroma validum (Stebb.) and E. setulosum 
(Stebb.) are respectively the young male and the female of 
a species of Cymodoce. Exospheroma amplifrons 
(Stebb.), of which I have inspected a fine typical specimen 
kindly forwarded me by Mr. Stebbing, is the male of an 
interesting species of Cymodoce; in the shape of the terminal 
part of abdomen it is much alike to Bregmocerella, but 
it differs from this genus and agrees with Cymodoce as to 
the number of spiniferous protuberances on exp. of plp.’, 
and the exp. of urp. is as large as the endp. Judging from 
the descriptions in the literature Haswell has correctly re- 
ferred Spheroma pubescens (M.-Hdw.) to Cymodoce, 
and above it is mentioned that Spheroma granulatum 
(M.-Edw.) and 8. yucatanum (Richardson) must be trans- 
ferred to the same genus. Of the other forms established 
in the literature as species of Cymodoce, C. bidentata 
(Hasw.), C. tuberculata (Hasw.), and C. inornata (White- 
legge) belong probably to this genus, while C. bermu- 
densis (Ives), according to my examination of specimens 
from the U.S. National Museum, is the female (and immature 
male) of a species of Paracerceis (n. gen.) (belonging to 
the eubranchiate Spheromine). Cilicea linguicauda 
(Richardson) is probably, Cil. granulosa (Richardson) 
perhaps, a species of Cymodoce; both differ from the other 
species of the last-named genus in having the endp. of urp. 
very short. The description of Cymodoce cordiforami- 
nalis (Chilton) I have not seen, but judging from the name 
the species can scarcely belong to the present genus. 
(7) Cilicawa (Leach).—The type is OC. Latreillei (Leach), 
