(i \.M.MA|{l|).i:. 



2. Eui7stheus bispiniiuanus, n. s. (^Tlaxe XXXV. fig. 8.) ll.-M . 



Eyes rcniform. Auti'iiiuc (wautiny). First pair of jiiiutliopoda long 

 and sloiuK-r. having tlio carpus as long as the propodos; propodos not 

 dilated, tapering, palm veiy oblique, not defined ; dactylos nearly 

 as long as the propodos, serrated upon the inner margin. Second 

 pair of gnathopoda having the carpus shorter than, but continuous 

 ■with, the propodos ; propodos two-thirds as broad as long, palm not 

 longer than the inferior margin, concave, armed with two obtuse 

 spines and one short obtuse submargiual tooth ; dactylos arcuate, 

 serrated along the' inner margin. Posterior pair of plcopoda 

 scarcely reaching beyond the preceding pairs. In other respects 

 the animal differs but little from E. eri/thfoj)hthcd)nus. 



Length ^V*^^^ ^^ ^^ inch. 

 JIab. Banff (Mr. Edward). 



62. AMATHIA. 



Amathia, liaflike, Fauna dir Krijtn. 



Spi'uce Bate, Brit. Assoc. JRepurt, 1855 ; Si/no2}sis, ^'C, Ann. Nat. 

 Hist. Feb. 1857. 



Inferior antennae longer than superior ; superior pair ha\'ing a 

 secondary appendage ; manchbles having an appendage. MaxiUi- 

 peds subpedilbrm, having two small plates arising from the basos 

 and meros ; dactylos unguiculate. Gnathopoda subchelate, sub- 

 equal ; propoda not largely dilated. Pereiopoda sube(|ual ; coxa 

 of the fourth pair shorter than that of the third. Posterior pair 

 of plcopoda bii'amous. Telson single, squamiform. 



1. Amathia Sabinii. (Plate XXXY. fig. 9.) B.M. 



Gammarus Sabiuii, Leach, App. Ross's First Voyage, ii. p. 178. 



Sabine, App. Parry's Vdiiatjc, p. 233. t. 1. f. 8-11. 



White, Cut. Crust. B. M. 1847. 



Kriiyer, Gronl. Amjip. p. 16. t.' 1. f. 3. 



Edwards, Ann. dcs Sci. Xat. xx. p. 3G8; Hist, des Crust, iii. p. 50. 



Sfiiiipsvn, Marine Invert. Grand 3Iunan, p. 54. 



Liljcbory, Of vers, af Konyl. Vet. Akad. Forhandl. 1854, p. 447. 



Bell, Append, to Belcher's Last Arctic Voyaye, p. 404. 



BidJike, Fauna Norveyica, Nor. Act. Acad. Leap. p. 71. 



TJiompson, Annals of Pliilosophy, xiv. 

 Amathia carinata, White, Hist. Brit. Crust, p. 182. 



Sjwnce Bate, Brit. Assoc. Report, 1855 ; Synopsis, SfC, Ann. Nat. 

 Hist. Feb. 1H57. 



Bruzelius, Skand. Aniph. Ganim. p. 50. 



Cephalon produced to a smaU rostrum. Anterior segments of the 

 pereion carinated ; the posterior, together with tlic anterior of the 

 pleon, carinated ami pustciioily denticulated; tlic dorsal apex of 



