104 MR. A. G. BUTLER ON NEW SATYRID^. [Jan. 24, 



The height of the body is contained from four times to four times 

 and a half in the total length (without caudal), the length of the 

 head thrice and a third or thrice and a fourth ; the -greatest width 

 of the head is five-sixths of its length. Occipital process as long as 

 or longer than broad, granulated, with a very obtuse median ridge, 

 extending to the small basal bone of the dorsal fin. Eye of mo- 

 derate size, much nearer to the snout than to the extremity of the 

 operculum, the length of the snout being nearly one-half of that of 

 the postorbital portion of the head ; upper jaw somewhat longer 

 than the lower. The teeth on the palate form a broad arched band, 

 the vomerine patches being slightly separated from the palatine, and 

 either perfectly continuous in the middle or but slightly interrupted. 

 The maxillary barbels extend to, or sometimes not quite to, the root 

 of the pectoral ; the outer ones of the mandible to the gill-opening. 

 Dorsal spines strong, half as long as the head, slightly serrated in 

 front and behind. Adipose fin as long as or shorter than the dorsal, 

 its length being less than one-third of the distance between the two 

 fins. Pectoral spine stronger and a little longer than that of the 

 dorsal fin ; ventral fins moi'e or less shorter than pectorals. Porus 

 axillaris minute. Sides of the body silvery, upper parts uniform 

 blackish. 



Mr. Krefft has sent us three specimens of this Arius, the largest 

 being 18 inches long. They were caught in the Hunter River, New 

 South Wales, near x\sh Island, by the Hon. A. \Y. Scott, M.A., and 

 are also to be obtained in nearly all the streams further north. 



3. Descriptions of some New Species of Safijridce belonging to 

 the Genus Euptijchia. By Arthur G. Butler, F.Z.S., 

 Assistant in the Zoological Dejaartmentj British Museum. 



(Plates XI. & XII.) 



I am now enabled, through the kindness of Mr. Ilewitson, to de- 

 scribe some beautiful new species of Enptychia, the names of which 

 I introduced in my monograph of this genus in the Society's ' Pro- 

 ceedings' for 1866 (pp. 458 et seq.). 



The first of these species is in some respects much like my E. eri- 

 yone ; it is perhaps most closely allied to E. usitata, and belongs to 

 the same group with E. myncea and E. camerta of Cramer. It is 

 included in my monograph under the name of Euptychia themis. 



1. Euptychia themis, Butler, MS. (PI. XII. fig. 13.) 

 (5 . Alee supra olivaceo-fusccB : antica I'mea apud marginem un- 

 diilata et margine ipso niyris ; afis de linea undulata fvsces- 

 centibus ; linea marginali ochreo-alba, puncto ocellari subapi- 

 cali nigro-fiisco ; ciliisfuscis, radicibus pallidioribus : jjosiicce 

 fascia antemarginali nigro-fusca undulata, li/ieom oc/ireu-alhaiu 



