178 AMPniPODA NOKMALIA. 



figure of a gTconish-grey, the lateral margin of each segrpont hr-ms; 

 shaded with orange, and the line of the prima via of a deep purple 

 colour throughout the percion. 



56. ERIOPIS. 



Eriopig, Bruzeliiis, Skand. Amph. Gamm. p. 64. 



" Body elongated, compressed. Coxoc small. Superior antenna) 

 having the peduncle slender, and the flagcllum furnished with a 

 veiy small secondary appendage. Inferior antennoD subpcdiform. 

 Mandibles furnished with two rami (?)*, a molar tubercle, and a 

 triai'ticulatc appendage. First pair of maxillae ornamented with a 

 biarticulatc palp. Palp of the maxillary feet composed of four 

 joints. Gnathopoda having the propoda subcheHform. Three 

 posterior pairs of pereiopoda gradually increasing in length poste- 

 riorly. Rami of the posterior pair of pleopoda very unequal ; 

 interior short ; exterior nearly equal in length to the entire pleon, 

 and consisting of two joints." — Bruzelius. 



1. Eriopis elongata. (Plate XXXII. fig. 5.) 

 Eriopis elongata, Bruzelius, Skand. A?nph. Gamm. p. 65, pi. 3. f. 12, 

 "Superior antennae very long, longer than the body; flageUum slender. 

 . Inferior antennae much shorter than the superior ; flageUum shorter 

 than the last joint of the pedimcle. Fii-st pair of gnathopoda 

 smaller than the second ; propodos of the second pair oblong- 

 ovate. Telson deeply cleft. 

 " Length ^ an inch. 



" Hob. Deep water, Bohusia." — Bruzelius. 



57. CRANGONYX. 



Crangonyx, Spetice Bate, Proc. Dublin Univ. Zool. 8) Bot. Assoc. 1859 ; 

 Nat. Hist. ReviciD, vi. p, 165. 



Superior antennae not longer than the inferior, having a secondary 

 appendage. Gnathopoda subequal, not having large propoda. 

 Pereiopoda subequal. Posterior pair of pleopoda unibranched. 

 Telson single, entire. 



1. Crangonyx suhterraneus. (Plate XXXII. fig. 6.) B.M. 



Crangonyx subterraneus, Spence Bate, Proc. Dublin Univ. Zool. Sf Bot. 

 Assoc. 1859 ; Nat. Hist. Review, vi. p. 166. f. 3. 



Pleon having the postero-inferior angle of the three anterior seg- 

 ments produced to a point, and the antero-iaferior angle fiu'nished 



* " Mandibiilse ramis duobus." 



