Head with two appendages: dorsal nearly even throughout, continuous with the caudal.
B. Gattorugine, Mont, in Wern. Mem. vol. ii. p. 447. Flem. Brit. An. p. 206. Gattorugine, Will. Hist. Pise. p. 132. c. xx. tab. H. 2. f. 2. Penn. Brit. Zool. vol. iii. p. 207. pl. 35. no. 91. Gattoruginous Blenny, Yarr. Brit. Fish. vol. i. p. 226.
From five to seven inches, sometimes more.
(Form). Snout not so obtuse as in the last species, the profile falling more gradually: teeth even throughout, the last in the series not longer than the others: eyes very high on the cheeks, rising above the level of the crown; the intervening space longitudinally impressed with a deep sulcus, conducting to another placed transversely immediately behind the eyes; beyond this is a slight gibbosity in front of the dorsal fin: over each eye a broad compressed tentaculiform appendage, much palmated on both its margins, in length more than one-third that of the head: lateral line as in the B. ocellaris: dorsal extending the whole length of the body, and uniting with the base of the caudal; nearly even throughout, having only a slight indentation about the middle; posteriorly somewhat rounded; the first thirteen rays soft but not articulated, the first and thirteenth being the shortest; fourteenth one-third longer than the preceding; this and all the succeeding ones articulated *, but simple: anal commencing under the thirteenth ray of the dorsal, not extending quite so far as that fin, and leaving a small space between it and the caudal: this last as in the B. ocellaris: pectorals equalling the head in length; all the rays simple; the two middle ones longer than the others: ventrals of only two simple articulated rays, without even the rudiment of a third; the inner ray longer and stouter than the outer one:
D. 13/20; A. 23; C. 11, and two short; P. 14; V. 2.
(Colours). "Plain rufous brown, without any markings, paler on the belly, as far as the vent: throat and fins orange-red, except the base of the dorsal and pectorals: irides, and cirrhi over the eyes, orange." Mont. The species of this genus, especially the British ones, have hitherto been but ill-determined. There is reason to believe that two or more have been confounded under the name of B. Gattorugine. The above description, from a specimen taken at Weymouth, appears to agree with the Gattorugine of Willughby and Pennant, which is probably quite distinct from the species described by Linnaeus under that name †. It also accords with the B. Gattorugine of Montagu, and of Fleming, who copies from him, but not with that of Donovan, as hereafter shown. Apparently not very common, at least on all parts of the coast. Pennant's specimen was taken on the coast of Anglesea: Montagus in a crab-pot on the south coast of Devon. Others have since occurred in Cornwall to Mr. Couch. Mr. Yarrell has also specimens from Poole Harbour, and from other localities on the south coast.
* The articulations are not easily seen, except the membrane investing the rays be dissected off and the fin viewed against a strong light. † On this point, see Bull, des Sci. Nat. 1828. torn. xv. no. 120.
"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.