104 "endeavour" scientific results. 



a. Posterior dorsal spines isolated, thirteen in number. 



K in met iehthy8, 

 aa. Posterior dorsal spines connected by membrane. 



b. Eleven dorsal spines, the posterior ones Ioav, and the 



last longer than the penultimate one 



Erythrichthys. 



hh. Twelve dorsal spines, the penultimate one as long as 



the last, and not very low Plagiogeneion. 



Plagiogeneion rubiginosus, Hutton. 



Therapon rubiginosus, Hutton, Trans. N. Zeal. Inst., viii., 



1876, p. 209. 

 Plagiogeneion rubiginosus, Forbes, Trans. N. Zeal. Inst., xxii,, 

 * 1890, p. 273. Id., Waite, Trans. N, Zeal. Inst., xlv., 1913, 



p. 218 pi. vii., and Rec. Cantb. Mus., ii., pt. 1, 1913, p. 18. 



A single large specimen, 365 mm. long, differs from Waite's 

 description of this species only in a few minor details. The 

 height is 2.98 in the length to the hypural ; the ventral spine is 

 inserted below the third dorsal one instead of in advance of the 

 first ; and the base of the second dorsal is less than half the 

 length of the spinous portion. I count 71 scales to the hypural, 

 the remainder — about ten — being on the base of the tail. 



Loc. — Eastern slope of Bass Strait, between Gabo and Flinders 

 Islands, outside one hundred fathom line. 



Plagiogeneion macrolepis, sp. nov. 



(Plate xx.) 



D.xii. 11; A. iii. 10; V. i. 5 ; P. 18-19; C. 17 ; 1. lat. 49-50 ; 

 1. tr. 8-9/1/18. Head 3.38-3.71 in the length to the hypural ; 

 depth 3.16-3.43 in the same. Eye 3-3.33 in the head; inter- 

 orbital width varying from slightly less, to a little greater than 

 the diameter of the eye, and 3.07-3.35 in the head. Snout 

 1.41-1.50 in the eye, and 4.25-4 75 in the head. Greatest breadth 

 of the maxillary 2-2.12 in the eye. Caudal peduncle 3.33-3.64, 

 fourth dorsal spine 1.7-1.96, second dorsal ray 2.85-3.07, and 

 second anal ray 2.59-2.83 in the head. Pectoral as long as, or a 

 little longer than the head, and 3-4 in the length of the body. 



Body moderately elongate and compi'essed ; it is deepest at the 

 verticle of the ventrals, thence tapering towards the tail. The 

 lower profile is a little more convex than the back. Head 

 obtusely conical ; mouth oblique. Maxillary very broad, its 

 posterior margin either truncate or a little rounded; it reaches 

 backward to below the end of the first third of the eye. Lower 

 jaw projecting, chin prominent. Suborbital very narrow. 



