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 unguiculata,* it 
is the commonest Schizopod of the deep-sea fauna of the Atlantic. It has 
been described and figured with great care by G. O. Sars in the final Report 
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 depth far beyond the 
penguin’s reach was the bird’s purveyor. 
Eucopia sculpticauda Fax. 
Plate K, Fig. 2, 2*; Plate LIIT., Fig. 1-1°. 
Bull. Mus. Comp. Zodl., XXIV. 218, 1893. 
This species differs from £. australis 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 H. australis as to render a detailed 
description superfluous. 
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 orbit. In 2. australis the frontal 
* Trans. Linn. Soc. London, Zodl., 2d Ser., I. 37, Plate VIII, 1875. This memoir was written on 
board the ‘Challenger’ under date of November, 1873. Ina letter from Dr. Willemoes-Suhm to Professor 
Siebold, dated April, 1874, and published on the 20th of October of the same year in the 24th volume of the 
Zeitschrift fiir wissenschaftliche Zoologie, occurs merely nominal mention of this species as Chalaraspis 
unguifera. The genus Chalaraspis was originally established (Trans. Linn. Soe. London, as cited above) for 
the reception of C. unguiculata alone. Suhm afterwards discovered and referred to the same genus another 
Schizopod (Chalaraspis alata Subm, Zeitschr. f. wissensch. Zool., XXIV., P- xx) which has been shown by 
G. O. Sars (Rep. Challenger Schizopoda, p. 50, 1885) to be not only generically but even familiarly distinct 
from Chalaraspis unguiculata. Chalaraspis unguiculata being synonymous with Zucopia 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 Zucopia, and a new generic name adopted for 
C. alata. 1 propose for the latter the generic name Eelytaspis (= Chalaraspis G. O. Sars, nec W.-Suhm). 
