160 "ENDEAVOUR" SCIENTIFIC RESULTS. 



specimen. The pectoral disc is wider in one of the 

 "Endeavour" specimens than in the others, its length 

 being 1-25 in the breadth as against 1-16-1-18; the dorsal 

 surface of the disc is more uniform, there being less of 

 the underlying skeletal structures visible than in the 

 larger example. A careful comparison of all four 

 specimens, however, leads me to the conclusion that they 

 are merely variations of the one species. 



Localities. Eastern edge of Bass Strait, 100-220 

 fathoms; Dec., 1912. 



Great Australian Bight, edge of bank, 80-120 

 fathoms; April, 1913. 



Great Australian Bight, South of Eucla, 130-320 

 fathoms. 



Distribution. New Zealand, South and south- 

 eastern Australia, from off Green Cape, N. S. Wales, 

 to south of Eucla, on the border between South and 

 West Australia. 



Family MYCTOPHID^E. 



DIAPHUS CCERULEUS Klunzinger. 



(Plate xliii, figs. 1-2.) 



Scopelus cceruleus Klunzinger, Verh. K. Zool. Bot. Ges. 

 Wien xxi, 1871, p. 152. 



Myctophum (Diaphus) cwruleum Brauer, Deutch. 

 Tiefsee Exped. xv, Fische, 1906, p. 217, tig. 137. 



Diaphus coeruleus Gilbert, Mem. Carnegie Mus. vi, 2, 

 1913, p. 94. Synonymy. 



D.16; A.15; P.ll ; V.S; C.19. L. Lat. 37. 



Depth (24 mm.) 4-6 in length to hypural joint 

 (112); head (32) 3-5 in the same. Eye (8*) 4 in head, 

 and 1-2 in interorbital width (10). Snout (4-5) 1-7 in 

 the eye. 



Origin of the dorsal fin above that of the ventrals. 

 and about midway between the adipose dorsal and the 

 hinder margin of the eye. Anal commencing just behind 

 the vertical of the last dorsal ray, and terminating below 

 the adipose dorsal fin. Pectorals short, not reaching the 

 vertical of the ventrals. Ventral fins large, reaching 

 backward to the vent. 



