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. L0NG1PES, 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. XIH, tig. 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 cor]). 12 — 13 millim. Forma corporis gracilis ct 

 elongata, epimeris mediocribus, capite parvo et ejus lohulis lateralibna Men- 

 tis, segmento 3:tio caudse postice gibho, ej usque angulis lateralilms poste- 

 rioribus (fig. 30, a) in aculemn longum et recurvum productis. Pedes truuci 

 longi et graciles. 



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

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

 culis 5. Antennae mferiores superioribus fere longitudinc aequales. Antenna? 

 superiores maris iisdem femiiue longiores, et ejus antennae inferiores flagello 

 gracillimo et longissimo, Ut partem posteriorem caudae iuterdum 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 (b, b) basin prope infra hispidis. Labium (c, c) ramis duobus ad api- 

 cem setiferis confectum. 



