KEPORT ON THE SCHTZOPODA. 65 



the representative of a new species, to which he assigns the name oi Eucopia equatona, 

 but after a careful examination of this, I feel convinced that it ought to he regarded 

 US ii male of EKCojna av.strali,s, the assumed specific differences being readily accounted 

 for as mere sexu;ii characters. 



13. Eucopia (distrdlis, Dana (Pis. IX. and X.). 



Eucopia aiisfralis, Dana, Uuittil States Exploring Expedition, Crustacea, part i. p. 609 ; Atlas, 



pi. xi. lig. 10, a tu m. 

 Ckalaraspis mu/uiculafa, Sulim, Trans. Liuu. Soc. Loml. (Zool.), ser. 2, vol. i. p. 37, pi. viii., 187.5. 

 I'Jucopia amtruUt!, G. 0. Sars, Preliminary Notices on flic Challenger Schizopoda, Xo. 12. 



Specific Characters. — Form of body rather slender, tail tapering backward very 

 considerably, with last segment very elongate. Carapace indistinctly areolate in its 

 anterior part, cervical and Ijranchiostegal lines well marked ; lateral wugs rounded off 

 at the tip and projecting far beyond the first caudal segment. Frontal margin evenly 

 arched. A slight infra-orbital projection present, but no trace of supra-orbital, antennal. 

 or branchiostegal spines. Eye small, cornea scai"cely expanded at all ; in male some- 

 what larger, with darker pigment. Last joint of antennular peduncle produced interiorly 

 into a setiferous lobe. Antennal scale oblong-ovate, apex rounded, outer edge some- 

 what sinuous, and terminating in a very small denticle. The three anterior pairs of 

 gnathopodous legs in male rather stronger than in female, the propodal joint being greatlv 

 swollen ; the three succeeding pairs of legs attaining almost the length of the whole body, 

 propodal joint slightly dilated and strongly spinous at the distal part of its inner edge, 

 terminal claw scarcely half as long, straight and spinous at base. Terminal part of telson 

 fringed with unequal spinides, the apex being armed with two straight spines, between 

 which two small bristles are attached. Uropoda attaining length of telson, outer plate 

 •obliquely truncate at apex, with three small denticles at the end of the straight outer 

 edge. Length reaching 50 mm. 



lic'inarks. — There cannot, I think, be any doubt whatever that this form is 

 identical with Dana's Eucopia australis. The author in question, it is true, does 

 not describe the very peculiar structure of the three pairs of legs preceding the last, but 

 merely remarks that the four posterior pairs are very long and slender, from which it 

 might be inferred that all these pairs have had a uniform appearance in Dana's specimen. 

 It must, however, be borne in mind that the solitary example described by Dana was not 

 in a very good state of preservation, having been taken from the stomach of a penguin, 

 and Dana, moreover, states, that the four posterior jJidrs of legs were partly broken. 

 In all other respects the figures and description of Dana agree sufficiently well with tlie 

 form here treated of, and described by the late Dr. v. Willemoes-Suhm under the name 

 of Chalaraspis tiiunncalaUi. 



