UAMMA1UI)-E. 209 



Milue-Edwurds considers it to be identical with Qam. marinus 

 of Leach and Desmarcst ; but these authors (the latter following 

 the former) state that the rami of tlic last pair of pleopoda are 

 unequal. 



In thanging the specific name, I have adopted that of the dis- 

 coverer of the species ; for to no one is Carcinology more indebted 

 than to Professor Milne-Edwards. 



7. Ganimanis Camptolops. (Plate XXXVIL fig. 3.) B.M. 



Gammanis Camptolops, Leach, Sam. Ent. U. Comj). p. 104. 



JMiite, Hid. Brit. Crmt. p. 183 ; Cat. Crust. B. M. 1847, p. 88 ; 



Cat. Brit. Crust. B. M. 1849. 

 Gosse, Marine Zoo/o;/!/, i. p. 141. 

 (rammanis Camylops, Leach, Edinh. Eiici/c. vii. p. 403. 

 Gammarus Campylop.«i, Leach, Linn. Trans, xi. p. 3(30. 

 Desmarest, Consid. sur les Crust, p. 2()7. 



Edwards, Ann. des Sc. Nat. xx. p. 2G7 ; Hist, des Crust, iii. 

 p. 48. 

 Gamniaru.s Locusta, Lilj'ebon/, Ofvers. af Konyl. Vetensk. Akad. For- 

 handl. 1854, p. 448. 



Like Gam'marus Locusta. Eyes Linear, black ; occasionally shaped 

 like the letter S. Superior antennae shorter than the inferior ; 

 flagellum not longer than the peduncle. Inferior antenna) a little 

 longer than the superior. Gnathopoda subequal, uniform ; pro- 

 poda tapering, pabnae oblique. Thi-ee posterior pairs of pereio- 

 poda ha\dng the basa disc-shaped. Penultimate pair of jileopoda 

 shorter than the preceding, and reaching to the extremity of the 

 peduncle of the ultimate ; ultimate having the rami unequal, one 

 branch being as long again as the other, both fringed \vith short, 

 sharp spinules. 



Length i an inch. 



IJah. Arran Island {Br. Leach) ; Shetland {Mr. Bar lee) ; Belfast 

 (Mr. Hi/ndman and Mr. Thomjjson) (Thornpson''s Nat. Hist, of Ire- 

 land, iv. p. 39o). 



The above description is taken from Leach's type specimen in the 

 British Museum. The habitats given are those from which speci- 

 mens with the crooked uycs have been taken ; but this is a feature 

 by no means to be depended upon as a specific character. Among a 

 considerable number that were sent to me by my much -valued friend 

 Mr. Barlee, the eyes were as frequently, if not more often, of a linear 

 form ; 1 am therefore inclined to believe that an undescribed va- 

 riety, found all round our coast, and which answers in all respects 

 exc('i)t the peculiar sigmoid eye, belongs to this species. Tt is an 

 intermediate form between G. Locusta and G. (jracHis. Liljeborg's 

 description of G. Locusta differs only in the form of the eyes from 

 G. ('(cni/itolops. 



I' 



