234 THE VOYAGE OF H.M.S. CHALLENGER. 



" Ordo Ainjihipoda. — Familia Gammari. 



" Oculi nulli. Antennae superiores inferioribus longiores, flagello appendiculari minuto, biarticu- 

 lato. Pedes ultimi paris stylo interiori brevissimo, exteriori valde elongate, biarticulato. 



Ni<^ap-yos." 



The type species he names Niphargtis stygius, Tvliich is figured on PI. IH. In tlie course of a 

 full description, he thus distinguishes the sexes, '■lamina hasaJis 7iltimi pedum jjaris duplo 

 longior segmento. Sfyhts ejus mterior in mare sestam decimam in f e m i n a vero septimam 

 styli exterioris partem tequans longitudine, apice spinulis prieditus duabus setaque pennata 

 singula. Sti/his ejrterior cylindricus ; articulus primus laminam basalem in femina duplo, 

 in mare autem triple superans longitudine, fasciculis ornatus utrinque spinularum brevium, 

 in maii obsoletiorilius ; fasciculis lateris exterioris e binis compositis spinulis setaque pennata 

 singula ; articulus secundus in femina dimidiam articuli primi partem complens fere longi- 

 tudine, lateribus apiceque fasciculis prseditis setularum ; in mare longitudine fere articuli 

 prirai, glaber, Ifevissimus, apice solo fasciculate." 



He concludes with the statements: — " Commoratur in locis depressioribus specus Adelsbergensis 

 et Lueg, aqua repletis stDlicidio abundante sedimentoque tectis fundi chrystallino. AgiUime 

 salit, captu difficilis ; territus latebras fundi velocissime petit." 



Schipdte next describes with great fulness, and figures, Koch's Pherusa alba. As Phei-usa was 

 more than once preoccupied, he gives a new generic name, Titanethes, in " Ordo Isopoda.— 

 Familia Onisci. — Tribus Onimni," the species becoming Tifanetheg alius. It is perhaps 

 owing to Koch's use of the name Pherusa, earlier employed among Amphipods, that 

 Schi0dte's Titanethes has itself been spoken of as an Amphipod genus. 



1850. Bate, Charles Spence, born March 16, 1819 (C. S. B.). 



Notes on the boring of Marine Animals. In Notices and Abstracts of 

 Communications to the British Association for the Advancement of Science, at the 

 Birmingham Meeting, September 1849. pp. 73-75. London, 1850. 



This paper, though mentioned in Boeck's list, does not refer to Amphipoda. Of Crustacea only 



Pagurus is mentioned. 

 The "Notes on Crustacea, Ann. Nat. Hist. VL 1850, pp. 109-111. VIL 1851, pp. 297-300," 



also mentioned in Boeck's list, have no reference to Amphipoda. 

 Another paper by Spence Bate, in which no Amphipoda are mentioned, is likewise included in 



Boeck's list, " On some Crustacea dredged by Mr. Barlee in Shetland, Ann. Nat 



Hist. X. 1852. pp. 356-357." 



1850. Dana, James D. 



Zoology. A new genus of Orchestidas. The American Journal of Science and 

 Arts. Second Series. Vol. IX.— May, 1850. New Haven. Number XXVI. 

 p. 295. 



Dana here says : — " In a synopsis of the genera of Gammaracea, in this Journal, volume viii. 

 p. 135, three genera of Orchestidse are mentioned, Talitrus, Orchestia and Allorchestes. We 

 here add a fourth ; and for the purpose of giving a fuUer comparative view of the four, and 

 correcting a misprinted word, we insert the generic characters for the group. 



