100 E. LÖNNBERG, CONTRIBUTIONS TO THE FAUNA OF SOUTH GEORGIA. 



dering a broad flat furrow, but disappear before arriving to the end of vomer on 

 which sits a well developed »horn» (as in Ghcenichthys rhinoceratus). Upper rim of 

 orbit raised to a low crenulated ridge. Diameter of eye contained not fully twice 

 in length of snout, and 47s in length of head, opercular flap included. Interorbital 

 width (osseous) about Vl 7 times in length of snout. The praeorbital part of head is 

 longer than the postorbital but not fully equal to half the length of head. The up- 

 per posterior branch of the operculum armed with 5 spines the two uppermost di- 

 rected upward, the three lower obliquely backward. At the angle of the opercle the 

 interoperculum carries two short but stout spines forming a fork. Teeth on jaws in 

 three series above and below. 



First dorsal more than twice as high as second. The order of length of the 

 rays of first dorsal is: 4, 3, 2 = 5, 1, 6, 7, but when the fin is erected in conse- 

 qnence of the direction of the rays the four foremost reach about to the same level. 

 Anal rays a little shorter than those of second dorsal, their ends being enveloped 

 in thick swollen skin. Pectorals resemble those of Ghcenichthys, truncate with the 

 upper angle rounded and the lower portion much more rounded, they extend a little 

 beyond the anus and equal in length the distance from end of snout to centre of 

 eye. The ventrals do not reach anus; the three . longest rays enveloped in their 

 distal parts in a very thick and swollen skin so that the thickness amounts to about 

 8 mm. ' Caudal peduncle short and moderately slender, about as high as long, its 

 height contained abont three times in the length of snout. Caudal fin short rounded, 

 its length about equal to the interorbital width. Colour »bluish grey on the back 

 and the sides», first dorsal appears to have been blackish and there is a large dark 

 blotch below the eye. Lower side unpigmented. - ■ 



Myctoplmm antarcticum (Gunthee). 



Fully recognizable specimens of this fish were by Sörling taken out of the 

 stomachs of Notothenia macrocephala marmorata caught off the coast of South Georgia. 



Bentliodesmus sp.? 



In the stomach of the same kind of fish as the foregoing was found a head 

 and anterior part of body of a fish which appears to belong to this genus. 



1 No doubt the ventrals are used as feet by the tish for walkiug on the ground. 



