^" f. 



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. GQ'' 4' S., long. 149° 44' E. The subsequent explorations of 11. M, 

 S. ^' Challenger '' showed that this animal enjoys an enormous geographical 

 rangc^ being found at great depths in the Atlantic, Pacific, Austi'alian, and 

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

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

 scribed and figured this species under the name of Chalaraspis iinguiculaiay^ 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 comparative!}^ 

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

 penguin's reach was the bird's purveyor. 



SJ" 



form of the frontal margin 



Encopia sculpticauda Fax. 



Plate K, Fig. ^, 2^ ; Flak LIU., Fig, 1-F. 



Bull. Mus. Coinp. Zool., XXiy. 218, 1893. 



r 



This species differs from F, cmsiralis in a striking manner as regards the 



of the carapace, the eyes, and the telson. In 

 other respects it agrees so closely with E. 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 E. australis the frontal 



-\ 



\ ^ 



;: i 



m 



'\ 



* Trans. Linii. Soc. London, ZouL, 3d Scr., I. 37, Plate VIll.,1875. This memoir was written on 

 board ilio '' Cliallcnger " under date of November, 1S73. In a leUcr from Dr. Wiliemoes-Sidim to Professor 

 Siobold, dated April, 1871, and publialicd on the 20Lh of October of the same year in the 24th volume of the 

 ZeiLsehrift fiir wisscnsehaftliehc Zoologie, occurs merely nominal mention of this species as Ghalara^pk 

 ungtdfera. The genus Chalaraqns was originally establislicd (Trans. Linn. Soc. Loudon, as cited above) for 

 the reception of G, imgnkulala alone. Sulim afterwards discovered and referred to the same genus another 

 Scliixopod {C/ialara.spU alaia Suhm, Zellschr. f. Avisscnsch. Zool., XXIV., p. xx) which has been shown bj 

 G. O. Sars (Hep. Challenger Schizopoda, p. 50, 1885) to be not only gencrieally but even familiarly distinct 

 from Chalaraspis unguiculaia. Chalaraspis uvguindaia being synonymous with Eucopia australis Dana, Sars 

 has seen fit to retain the generic name Chalaraspu for C. alciia^ a proceeding not iu accordance with sound 

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

 tlio name Chalaraspis should be dropped as a synonym of Eucopia, and a new generic name adopted for 

 C alaia. I proj)ose for the latter the generic name Eclyiasjiis ( -^ Chalaraspis G. 0. Sars, nee W.-Suhm). 





