380 PISCES (OSSEI) ACANTHOPT. [BLENNIUS. 



(9.) B. Gattorugine, Don. Brit. Fish. vol. iv. pi. 86. B. Gattoru- 

 gine, Linn. Syst. Nat. torn. i. p. 442.? Bloch, Ichtli. pi. 167. 

 f. 2. ? Turt. Brit. Faun. p. 92. 



" The anterior half of the lateral line double ; its lower limb extending 

 in a straight direction from the gills to the tail ; midway between this and 

 the back is an arched lateral line originating at the hind part of the head, 

 and curving down to the former, with which it is united a little behind the 

 tip of the pectoral fin : D. 32 : P. 13 : V. 2, of nearly equal length, with 

 a very small lateral appendage: A. 20: C. 12: the rays of the tail 

 branched : all the rest simple or undivided." DON. 



The double lateral line, the small lateral appendage to the ventrals 

 forming a kind of third ray, and the four palmated membranes on the 

 head, clearly characterize this as a distinct species from either of the two 

 last, supposing Donovan's figure and description to be correct. The four 

 appendages on the head associate it with the B. Gatt. of Linnaeus and 

 Bloch. The double lateral line is probably an error. Bloch and Turton 

 describe the lateral line as straight. In the -B. Gattorugine of this work it 

 is curved. Donovan does not state whence his specimen was obtained. 



55. B. palmicornis, Cuv. (Crested Blenny.) Head 

 with four appendages : dorsal even throughout, continuous 

 with the caudal : ventrals very small. 



B. palmicornis, Cuv. Reg. An. torn. n. p. 237. B. Galerita, Flem. 

 Brit. An. p. 207. B. Pennantii, Jen. Cat. of Brit. Vert. An. 24. 

 sp. 54. Crested Blenny, Penn. Brit. Zool. vol. in. pi. 35. no. 90. 

 but not p. 206. Yarr. Brit. Fish. vol. i. p. 233. 



LENGTH. Four or five inches. 



DESCRIPT. (Form.) Much more elongated than either of the pre- 

 ceding species : depth, which is tolerably uniform throughout, equalling 

 not more than one-seventh of the entire length : body considerably com- 

 pressed: snout short and obtuse; the profile descending in a curve: 

 " outline of the mouth, when viewed from above, forming a semicircle ; 

 viewed laterally, the angle of the mouth is depressed," the lower jaw 

 ascending to meet the upper : gape rather wide ; " lips capable of exten- 

 sive motion:" teeth small and short; rather irregularly disposed, and 

 not all exactly of the same length: eyes high on the cheeks, but not 

 elevated above the crown : the intervening space flat, ornamented with four 

 fimbriated tentaculiform appendages ; the first pair of appendages are 

 placed, one at the anterior margin of each eye, and are connected at the 

 base by a low transverse membrane or fold of the skin ; the second pair, 

 which are twice the length of the first, and rather more fimbriated, are 

 placed further back near the posterior margins of the eyes : " nape of the 

 neck, and for some distance towards the commencement of the dorsal fin, 

 the skin is smooth, with the exception of various small papillae:" orbits 

 surrounded by a circle of large, open, conspicuous pores : a row of similar 

 pores at the upper part of the opercle, falling in with the commencement 

 of the lateral line : dorsal commencing in a line with the upper angle 

 of the opercle, and extending quite to the caudal, with which it is conti- 

 nuous ; its height, which is uniform throughout, equalling rather more 

 than half the depth of the body ; the first ray a little shorter than the 

 second ; all the rays simple, and apparently all spinous or inarticulated, 

 their extreme tips projecting beyond the connecting membrane ; the first 

 three, however, accompanied by short filamentous prolongations of the 

 membrane, which extend further than themselves : anal commencing in 

 a line with the fourteenth rav of the dorsal, and extending, like that fin. 



