REPORT ON THE SCHIZOPODA. 



51 



peduncle short and thick, inner flagellum very small. Antennal scale not jointed, outer 

 edge serrate. The two (?) anterior pairs of legs differ slightly from the rest, which 

 are uniform in structure, and true pereiopoda. Telson prolonged, acuminate. Outer 

 plate of uropoda not jointed at apex. 



Remarks. — -The specimen from which the present genus is established lias 

 unfortunately been lost. But to judge from the drawings of the animal made by the late 

 Dr. V. Willemoes-Suhm, it certainly claims to be regarded as the type of a distinct 

 genus among the Lophogastridse. The generic name Chalaraspis has, it is true, been 

 also adopted by that author for another very different Schizopod — Chalaraspis 

 unguiculata ; but as that form has proved to be identical with Dana's Eucopia austraUs. 

 I have thought fit to retain the generic denomination proposed bv Dr. v. Willemoes- 

 Suhm for the remarkable form here treated of, the name being, moreover, -a most appro- 

 priate one. 



12. Chalaraspis alata, Willemoes-Suhm MS. (Woodcuts 1, 2). 



Specific Characters. — Form of body rather short and thickset. Carapace without 

 either keels or sculpturing, emarginate behind, wholly covering the two anterior segments 

 of the tail, as also a part of the third segment. Cervi(;al sulcus distinct. Frontal plate 

 abruptly truncate, anterior margin finely serrate. Eyes very small and narrow. Anten- 

 nular peduncle projecting with its two outer joints l)eyond the frontal plate. Antennal 

 scale not very large, of an oval form, apex rounded. Telson, equalling in length the tliree 





Fig. 1. — Chalaraapis u.latn^ Suhni. 



preceding segments taken together, rather narrow, and tapering towards the apex. 

 Length, 40 mm. 



Remarks. — As above stated, the only specimen obtained by the Challenger Expedition 

 has been lost, and hence I have not m}^self been enabled to submit the species to a 

 detailed examination. However, the two drawings of this interesting form were for- 

 tunately found among the manuscripts of the late Di-. v. Willemoes-Suhm. — the one 



