PYCNOGONIDA 



thei long, slender, the scape distinctlj two-jointed, the fingers rather long, slender, 

 uiuh.it without teeth, 



unjointed, tapering. 



short, without claw; the terminal point without dermal leaves, 

 ambulator} leg Four times the total length, rather slender, the first tibial joint partly, the 



in the whole length provided with two series oi long natatory bristles. The claw 

 rather slender, with short, very slender auxiliary claws. 

 ; length Hie proboscis 9 The trunk i$ mm . The caudal segment 7""". 



The Ingolf-station 47, in the north-eastern Atlantic, 6i 32'LatN. 13 p'Loug.W. 

 : ith. The bottom graj clay with Globigerina shells and a temperature of 3 -\v One 

 gle female 



elucidating the genus Pallenopsis, and the species of ECroyer Pall, jluminensis that lias 

 -. much discussed, I shall here, relying on the original specimen of the museum, give some ; 

 ticulars, starting with a new diagnosis of the species. 



Pallenopsis fluminensis Kr. 

 PI. V. Fig. 1 6. 



Phoxichilidium fiuminense Kroyer, Kundsk. Pycnog., 1844, pp.104 an<1 I2 4 Tab. I. Fig. 1, a-£ 



Hoek, Report Pycnog. Challenger . r88i, p. 81. PI. XIV. Fig. 1-4. 

 Pallene fluminensis Semper. Pycnog. Larvenf., 1874, p. 



Bohm, Pycnog. Berl., [879, p. 180. Tab. I. Fig.4, 4 a-f. 

 Pallenopsis fluminensis Wilson, Report Pycnog. Blake , 1882, p. 250. 



Si liiinkewitscli. Pantop. Vettor Pisani , [890, p. 14 (339). Fig. 24-31. 



stum, glabrum. 

 ■ . 1 ve. 

 rum breviusculum, crassiusculum, in medio vix constrictum. 



at altum, erectum, subconicum, ad apicem paulum atteuuatum; ocelli perparvi, rotundi. 

 uliiui, minus productum, in obliqutim erectum. 

 robusti, scapo subs g-errime partito; digiti perbi -si, vix hiantes. 



ilidi, obtusi. 



que ungue. 



siusculi; ductus glandarius in articulo quarto maris brevis. Unguis 

 itnguiculis auxiliariis sat robustis, dimidiam longitudinem unguis paulum 



Corporis ; . Segmenti caudalis 2""". 



