AIMMONDIX. 381 



pleon, produced posteriorly into obtuse broadly triangular teeth, 

 ]iresont also on the si^viiith segment of the pereion, and termi- 

 nating on the third segment of the pleon. The superior anteuna3 

 two-thirds the length of the body, the inferior ones half shorter. 

 Gnathopoda subehelate ; the second pair much larger than the 

 first. The third, fourth, and fifth pairs of pereiopoda ha^•ing the 

 fourth and fifth joints veiy broad, being produced inferiorly and 

 posteriorly . " ' — Sa rs . 



It a])pears to me that this description corresponds closely with 

 that of CaUiope Fin<jalli in tlie ' ]Iistory of the Jiiitish Sessile-eyed 

 Crustacea,' in which case Sai's's specific name would take precedence. 



34 b. Amphithoe serraticomis. 



Amphithoe serraticomis, .SV/ns, Oversigt den Norsk- Arctiske Region 

 forvhommende Krehsdyr. p. 21. 



" Animal smooth. Eyes moderately large, reniform. Antennae sub- 

 equal, about one-third of the length of the animal ; third joint of 

 the peduncle of the superior produced into a conico-acute tooth 

 {spina) covered with hairs, eipialling in length half the joint ; 

 articuli of the tiagellum broadly dilated anteriorly and inferiorly, 

 so that the flagellum appears to be serrated." — Sars. 



This species appears to me to belong to the genus Atylus or 

 CaUiope. 



34 c. Amphithoe fulvocincta. 



Amphithoe fulvocincta, ISars, Ooersiyt den Norsk- Arctiske Region 

 Jorekoniniende Krehsdyr. p. 22. 



" Has a strong sharp tooth in the middle of the posterior margin of 

 the last segment of the pereion and the first two segments of the 

 jjleon, but no carina. Eyes large, oval, or a little renifonn. An- 

 tennai unusually long and slender ; the superior from three-fourths 

 to four-fifths longer than the inferior, equalling or sui-passing the 

 length of the animal. In colour the animal is of a pellucid yel- 

 lowi.sh-white, marked with rings of brownish -yellow in the pos- 

 terior dorsal margin of each segment ; antenntc with brownish 

 rings ; eyes red." — Sars. 



34 (/. Amphithoe macrocephala. 



Aaipiiilhoo maciocepluila, S(irs, Oversiyt den Norsk- Arctiske Region 

 forckoinmende Krehnlyr. p. 2.'i. 



"iUlied to the preceding, and similarly armed. It is to be known 

 by the great size of the head, which nearly equals that of the first 



