GAMMARUS CAMPYLOPS. 



AMPH1PODA. 



NA.TATOR1A. 



375 



GAMMARIDES. 



GAMMARTJS CAMPYLOPS. 



Specific character. Third segment of the pleon having the infero-posterior 

 angle produced to a point. Posterior pair of pleopoda having the inner 

 ramus nearly half the length of the outer. Eyes sigmoid or reniform. 



Length \ inch. 



Gammarus camylops. 

 Gammarus campylops. 



Gaminarus camptolops. 



Gammarus camphylops. 

 Gammarus locusla. 



LEACH, Edin. Encyc. vii. p. 403. 



LEACH, Linn. Trans, xi. p. 360. Suppl. Enc. 



Brit. i. p. 425. DESMAREST, Consid. sur les 



Crust, p. 267. MILNE EDWARDS, Hist, des 



Crust, iii. p. 48. THOMPSON, Ann. Nat. Hist. 



t. xx. p. 242. 

 SAMOTJELLE, Ent. U. Comp. p. 104. WHITE, 



Hist. Brit. Crust, p. 183. Cat. Brit. Crust. 



p. 53. Cat. Crust. Brit. Mus. 1847, p. 88. 



Cat. Brit. Crust. Brit. Mus. 1849. GOSSE, 



Mar. Zool. i. p. 147. SPENCE BATE, Cat. 



Amph. Brit. Mus. p. 209, pi. xxxvii. fig. 3. 

 MILNE EDWARDS, Ann. Sc. Nat. xx. p. 367. 

 LILJEBORG, Ofvers. af Kongl. Vet. Akad. For- 



handl. 1853, p. 448. 



THIS species differs from G. locusta in the following 

 characters. The eyes are linear, reniform, or occasionally 

 bent in the form of the letter S. The antennas are 

 short. The superior pair in the type specimen do not 

 reach beyond the third segment of the body, and the 



