On the Lysianassa magellanica etc. 



23 



tant. We further add the accompanying list with such descriptions and re- 

 marks as the circumstances give rise to. 



1. A. AMPULLA (Phipps); Kroyer. 



Anonyx ampulla, H. Kroyer: Naturhist. Tidsskr. 2 Rsekke, 1 Bd. pag. 578. 



„ „ R. Bruzelius: Skandinaviens Amphipoda Gammaridea, pag. 



39; Wetensk. Akad:s Handl., ny foljd, Bd. 3 1859. 



This species does not appear in Spence Bate's and J. 0. West- 

 wood's "British Sessile-eyed Crustacea." The species there introduced 

 under this name is a totally different one, as will presently be shown. 



2. A. LONGIPES, Spence Bate. 



Anonyx longipes, C. Spence Bate : Catalogue of the specimens of Amphi- 

 podous Crustacea in the Collection of the British Museum, 

 pag. 79, pi. XIII, fig. 4. — Femina. 

 „ „ C. Spence Bate & J. 0. Westwood: History of British 



Sessile-Eyed Crustacea, T. I, pag. 113. — Femina. 

 „ ampulla, C. Spence Bate : Catalogue etc., pag 79, pi. XIII, fig. 

 5. — Mas. 



„ „ C. Spence Bate & J. 0. Westwood: History etc. pag. 



116. — Mas. 



Descr. Longitudo corp. 12 — 13 millim. Forma corporis gracilis et 

 elongata, epimeris mediocribus, capite parvo et ejus lobulis lateralibus acu- 

 tis, segmento 3:tio caudse postice gibbo, ejusque angulis lateralibus poste- 

 rioribus (fig. 30, a) in aculeum longum et recurvum productis. Pedes trunci 

 longi et graciles. 



Antennae superiores feminae (fig. 23) segmentis 2:do et 3:tio pedun- 

 culi brevissimis, flagelli articulis circ. 15, et flagelli appendicularis arti- 

 culis 5. Antennae inferiores superioribus fere longitudine aequales. Antennae 

 superiores maris iisdem feniina3 longiores, et ejus antennae inferiores flagello 

 gracillimo et longissimo, ut partem posteriorem caudas interdum asse- 

 quantur. 



Labrum (Fig. 24) parte superiore (a) in longum acumen durum, com- 

 pressum et recurvum porrecta, et infra ad ejus basin lobulis duobus mol- 

 libus (6, b) basin prope infra hispidis. Labium (c, c) ramis duobus ad api- 

 cem setiferis confectum. 



