EUCOPIA SCULPTICAUDA. 219 



The type specimen of this interesting Schizopod was taken from the 

 stomach of a penguin collected by the Wilkes Expedition in the Antarctic 

 seas, lat. 66° 4' S., long. 149° 44' E. The subsequent explorations of H. M. 

 S. " Challenger " showed that this animal enjoys an enormous geographical 

 range, being found at great depths in the Atlantic, Pacific, Australian, and 

 Antarctic Oceans. It has also been dredged at a recent date in the Bay of 

 Bengal by the " Investigator." According to Willemoes-Suhm, who rede- 

 scribed and figured this species under the name of Chalaraspis vngumilaia* it 

 is the commonest Schizopod of the deep-sea fauna of the Atlantic. It has 

 been described and figured with great care by G. 0. Sars in the final Eeport 

 on the " Challenger " Schizopods, pp. 55-62, Plate IX., X. 



The finding of this species in the stomach of a penguin is taken by 

 Sars as evidence of its occurrence, in the Antarctic Ocean, in comparatively 

 shallow water. But perhaps a fish just risen from a deptli far beyond the 

 penguin's reach was the bird's purveyor. 



Eucopia sculpticauda Fax. 



Piute K, Fig. 2, 2'' ; Plate LIIL, Fig. 1-1". 



Bull-. Mus. Comp. Zool, XXIV. 218, 1893. 



This species differs from E. austruUs in a striking manner as regards the 

 form of the frontal margin of the carapace, the eyes, and the telson. In 

 other respects it agrees so closely with E. australis as to render a detailed 

 description superfiaous. 



The frontal margin of the carapace is very prominent, forming a three- 

 sided, blunt rostrum, which projects between the eye-stalks and wholly con- 

 ceals the underlying ocular segment. The lateral margins of the rostrum 

 form the upper wall of a deep, distinct oibit. In E. australis the frontal 



* Trans. Liim. Soc. Loudon, ZouL, 2d Scr., I. 37, Plate VIII., 1875. Tliis memoir was written on 

 board the " Challenger " under date of November, 1 S73. In a letter from Dr. Willemoes-Suhm to Professor 

 Siebold, dated April, 1874, and published on the 20tli of October of the same "year in the 24th volume of the 

 Zeitsohrift fiir wissenschaftliche Zoologie, occurs merely nominal mention of this species as C/ialirraspis 

 unguifera. The genus Chalaraspis was originally established (Trans. Linu. Soc. London, as cited above) for 

 the reception of C. utigidntlala alone. Suhm afterwards discovered and referred to the same genus another 

 Schizopod {Chalaraspis alata Suhm, Zeilschr. f. wissensch. Zool., XXIV., p. xx) wliich lias been shown by 

 G. O. Sars (Rep. Challenger Schizopnda, p. 50, I8S5) to be not only generically but even familiarly distinct 

 from Chalaraspis ungnirulata. Chalaraspis uvguieulata being synonymous with Eucopia australis Dana, Sars 

 has seen fit to retain the generic name Chalaraspis for C. alata, a proceeding not in accordance with sound 

 principles of nomenclature. The types of the genera Eucopia and Chalaraspis being one and the same species, 

 the name Chalaraspis should be dropped as a synonym of Eucopia, and a new generic name adoptt-d for 

 C. alata. I propose forihe latter the generic name Ecli/taspis ( = Chalaraspis G. O. Sars, nee W.-Suhm). 



