GOBIOIDEiE. 



99 



vomer *. Scales small, closely tiled, very rough, and ciliated. Very small ones cover the 

 top of the head and opercula. There is one porous row above the lateral line, and two 

 some distance beneath it. In all the species the lateral line is prolonged between the rays of 

 the caudal, and the membrane of that fin is minutely scaly. The scales do not extend to the 

 other fins in this species, though they do in some of the rest. 

 Fins.— Br. 6; P. 24/ ; V. 6; A. 24/ j C. 17; D. 46/. 



Total length 



Length of head and gill- cover 

 „ from tip of snout to dorsal 

 „ of attachment of dorsal 







Dimensions. 









Inches. 



Lines. 





Inches. Lines. 



. 



. 15 



10 Length from dorsal to caudal . 





. 1 7 





3 



„ of attachment of anal 



. 



4 3 



. 



. 3 



5 „ from anal to caudal 



, 



. 1 8 





6 



6 „ of lobes of caudal 



{Mem. 



2 3 

 de Petersb.) 



[47.] 2. Chirus decagrammus. (Cuvier.) Ten-lined Chirus. 



Labrax decagrammus. Pallas, Mem. de Petersb., ii., p. 386, t. xxii., f . 2. 



This species was taken by Billings off Cape St. Elias. 



It is covered with small roughish scales, which are least on the belly, top of the head, and 

 gill-covers : there are also minute scales on the bases of all the fins betwixt the rays. The 

 rows of pores are five on each side, including the lateral line, and one of them is interrupted 

 between the ventrals and middle of the anal. The dorsal is deeply notched in the middle, 

 the twenty rays of its anterior portion being simple, the twenty-four of its posterior one 

 forked. The gill-cover ends in a membranous point. The body is bluish above, the back 

 and sides being marked with pale and dusky blotches : the belly is whitish. The dorsal is 

 spotted, the pectorals yellowish and clouded, and the anal and caudal blackish. 



Fins.— Br. 5; P. 24; V.6; A.24; C. 16; D. 20/24=44. (Mem. de Petersb.) 



Total length .... 



Length of head and gill-cover 



„ from tip of snout to dorsal . 



„ of attachment of first part of ditto 





Dimensions, 



nehes. 



Lines. 



13 



1 1 Lengl 



2 



9 



3 



o 



4 







Inches. Lines 

 Length of attachment of second part of dorsal 4 1 



„ anal . . 4 3 



from dorsal to caudal ... 1 5 



(Mem. de Petersb.) 



* Labrax lagocepkalus and hexagramrm/s are also mentioned by Pallas as having teeth on the vomer, as we have ren- 

 dered the expression areola palati ; but in the accounts of the other species maxillary teeth only are noticed. Tilesius's 

 figure of Hexagrammos Slelleri represents the vomer and palate smooth, and two crowded groups of teeth on the upper 

 pharyngeal bones. Pallas speaking of C. kexagrammus says, " Areola palati itidem aspeiata^ which refers to the vomer, 

 and not to the palate-bones, as is evident from Steller's more precise language : " potato medio non procul a labiis panter 

 areola denticetlis obsita est, ut et iuberculum imo ori denticulatum supra gulam ipsam." 



o 2 



