MUNIDOPSIS. 81 
Station 3429. 919 fathoms 1 male. 
Var. parvispina. 
Station 3418. 660 fathoms. 1 male. 
Soho nia 13% 1 fem. ovig. 
S424. 1676, 2% 1 male. 
pea 29. O19) «24° 1 male. 
« 3435. 859 a 18 males, 17 fem. (6 ovig.). 
peer s456.) 905" © 5 6 males, 4 fem. (3 ovig.). 
In both G. rostrata and G. diomedee there is a curious sexual difference 
In the male the proximal half of the telson is furnished on each side with 
long, amber-colored sete which are entirely wanting in the female. The 
same difference between the sexes is found in some species of Munidopsis. 
G. diomedee is often invested with parasites. One of the males from 
Station 5371 bears a Peltogaster, while seven specimens (5 males, 2 females) 
of var. parvispina house a Bopyrus in the left branchial chamber. 
The eggs of this species measure 3 x 2.5 mm. 
MUNIDOPSIS Wuaiteaves. 
Amer. Journ. Arts and Sci., 3d Ser., VIJ. 212, 1874. 
The type species of this genus is Munidopsis curvirostra Whiteaves, from 
the eastern coast of North America. The genus has been redescribed by 
A. Milne Edwards, under the name Galathodes in the Bulletin of the Museum 
of Comparative Zoilogy, Vol. VIII., p. 53, 1880. In the same paper Milne 
Edwards proposed the two genera Orophorrhynchus and Elasmonotus for the 
reception of certain species closely allied to Munidopsis. Orophorrhynchus has 
already been united with Elasmonotus by Henderson. Evasmonotus was insti- 
tuted to embrace the species characterized by a flat, quadrangular carapace 
devoid of spines. But such species are connected with the typical Munidopsis 
by so many intermediate forms, which may be assigned to either genus at the 
whim of the describer, that I have united E/asmonotus and Munidopsis as one 
genus. As the genus Anoplonotus of Smith * does not seem to be sufficiently 
distinct from Elasmonotus, it is here merged, with the latter, in Mundopsis. 
The union of Minidopsis, Orophorrhynchus, and Elasmonotus, necessitates 
renaming two of Henderson’s species, viz. Munidopsis brevimana and Elasmo- 
notus latifrons, since both of the trivial names had been previously employed 
* Proc. U. S. Nat. Mus., VI. 50, 1883. 
11 
