7. TRACHELOCHISMUS. 509 



lines. 

 Distance of the origin of the dorsal from the 



snout 13 



Distance of the origin of the dorsal from the 



caudal 5 



7. TRACHELOCHISMUS. 

 Trachelochismus, Bris. de Bamev. Rev. Zool. 1846, p. 212. 



Anterior part of the body broad and depressed ; skin tough, 

 naked. Snout depressed, produced as in Lepadogastcr. Posterior 

 portion of the adhesive apparatus suspended at the coracoid bones, 

 with the anterior margin free. Jaws with a patch of small teeth in 

 front and wdth a series on the sides. Incisors none. GUIs thi-ee 

 and a half; pseudobranchiae rudimentary; brancliiostogals five ; giU- 

 merabranes extending from one side to the other, not attached to 

 the isthmus. 



Coasts of New Zealand and of the Peejce Islands. 



1. Trachelochismus pinnulatus. 



Cycloptenis pinnidatus, Forst. Descrqji. Anim. ed. Lichtenst. p. 301. 



littoreus, Forst. I. c. p. 114; Bl. Schn. p. 199. 



Lepadogaster pinnvdatus, Bl. Schn. p. 2. 



Gobiesox littoreus, C'liv. Reyne Anim. 



Trachelochismus pinnidatus, Bamev. Rev. Zool. 1846, p. 212. 



D. 8. A. 7. 



Caudal free from dorsal and anal fins ; nostrils with short ten- 

 tacles. Snout, if viewed from above, triangidar, broader than long. 

 Camiine-red, with waving purplish and yellowish cross-streaks on 

 the occiput ; body and fins with yellowish spots. 



Coasts of New Zealand. 



a. Fine specimen. New Zealand. Presented by Captain Stokes. 



b, e. Adult. 



The body is broad and depressed anteriorly, compressed posteriorly, 

 covered with a tough and naked skin. The length of the head is 

 one-third of the total, and its greatest width is two-thirds of its 

 length ; its upper sui-face is flat, gently sloping downwards to the 

 snout ; the interorbital space is very broad, its width being t^dce 

 the horizontal diameter of the eye. The snout is much depressed, 

 broader than long, and nearly twice as long as the eye. The cleft 

 of the mouth extends to below the anterior part of the orbit ; the 

 jaws are equal in length anteriorly, with broad hps, the upper and 

 lower lip being dilated into a flap on each side. Both nostrils are 

 provided -with short tentacles; that of the posterior, however, is 

 minute. The lower angle of the giU-covers Ls produced posterioidy 

 into a short cutaneous flap. The pecuhar charactei's of the gill- 

 apparatus and of the adhesive disk have been stated in the generic 

 diagnosis. The ventrals, composed, as usual, of four rays and one 



