.Ux,>.^^ixxj._^_ J^-^ J_+^ t-T^^^^^?^ 



>jt^Tr.^'— WJ-K>tAi— - 



•^r —r b 



^ ^^L A 



-u ir. ^x^ ■ 



\ 



MUNIDOPSIS. 



81 



Station 3429. 919 fathoms 1 male. 



Var. parvispind. 

 Station 3418. 660 ftithoms. 1 male. 



\ ■ 



a 



u 



u 



a 



iC 



3419. 772 



3424. 676 



3429. 919 



3435. 859 



3436. 905 



ii 



a 



U 



6i 



ii 



1 fern. ovig. 



1 male. 



1 male. 



18 males; 17 fern. (6 ovig.) 



6 males^ 4 fern. (3 ovig.). 



In both G. rostrata and G. diomedcce there is a curious sexual difference 

 In the male the proximal half of the telson is furnished on each side with 

 \oi\^y amber-colored seta3 which are entirely wanting in the female. The 

 same difference between the sexes is found in some species o^ Mumdopsis. 



G, diomedecB is often invested with parasites. One of the males from 

 Station 3371 bears a PcUogaste)% Avhile seven specimens (5 males, 2 females) 

 of var. parvispim house a Bopyrus in the left branchial chamber. 



The eggs of this species measure 3 x 2.5 mm. 



MUNIDOPSIS WlIITEAVES. 



Amer. Journ. Arts and Sci., 3d Scr., VII. 213, 1874. 



The type species of this genus is Manidopsis ciirvirostra Whiteaves, from 

 the eastern coast of North America. The genus has been redescribed by 

 A. Milne Edwards, under the name Galalhodes in the Bulletin of the Museum 

 of Comparative Zoology, A^ol. VIII., p. 53, 1880. In the same paper Milne 

 Edwards proposed the two genera Orophorrhynclms and Elasmmwhis for the 

 reception of certain species closely allied to Mimidopsis, Orop)horrhynchis has 

 already been united with Elasmonotus by Henderson. Ulasmonohs was insti- 

 tuted to embrace the species characteri/ed by a flat, (quadrangular carapace 

 devoid of spines. But such species are connecteiJ with the typical Mwiidopsis 

 by so many intermediate foi^ms, which may be assigned to cither genus at the 

 whim of the describer, that I have united Elasmonotus and Munidopsis as one 

 genus. As the genus Anoplonotiis of Smith * does not seem to be sufficiently 

 distinct from Elasmonotus^ it is here merged, with the latter, in Munidopsis, 



The union of Munidopsis, OrophorrhyncJius^ and Elasmonotus, necessitates 

 renaming two of Henderson's species, viz. Manidojms hrevimana and Elasmo^ 



1 



1 



latif} 



* Proc. U. S. Nai. Mus., VT. 50, 1SS3. 



11 



