io6 



cutaneous cells on tail and enclosed in a complete brood-pouch, 

 formed by a pair of lateral cutaneous folds, beginning behind 

 anus and coalescing in the median line. 



Distribution: That of the single species known. 



I. Haliichthys taeniophorus Gray [Fig. 44, p. 105]. 



Haliichthys taeniophorus Gray, Proc. Zool. Soc. London, 1859, p. 38. 

 Haliichthys taeniophora Dumeril, Hist. nat. Poissons II, 1870, p. 531. 

 rhyllopteryx taeniophorus Giinther, Cat. Brit, Mus. VIII. 1870, p. 197. 

 Phyllopteryx taeniophorus Macleay, Descr. Cat. Austr. Fishes II. 1881, p. 239 



(separ. edit.). 

 Phyllopteryx taeniophorus Max Weber, in: Semon, Zool. Forschungsreisen V. 



1895, Fische, p. 275 (Jenaische Denkschr. VIII, p. 115). 

 Haliichthys taeniophorus Duncker, in: Fauna Siidwest Australiens II. 1909, 



Pisces, p. 236. — Mitt. a. d. naturh. Mus. Hamburg XXXII. 1915, p. 112. 



D. 24 — 26; A. 4; P. 20 — 21; Rings 19+44 — 45; subdorsal 

 rings 3—4+2. 



Head about 5 times in length, more than i 7, times in trunk. 

 Eye more than 6 times in head. Snout nearly equal to twice 

 the length of postorbital part of head. Brown, with irregular 

 dark bands across the back, abdomen whitish, cutaneous 

 appendages black. Length 300 mm. 



Habitat: South New Guinea!. — Prince of Wales Island 

 (Torres Straits); North and West Australia. 



In sea. 



21. Hippocampus Rafinesque. 



(Rafinesoue, Caratteri di alcuni Nuovi Generi di Animale della Sicilia, l8io, p. 1 8). 



Trunk strongly compressed, more or less elevated, the belly 

 gibbous, composed of ten to twelve rings, tapering abruptely 

 to a long quadrangular prehensile, finless tail. Longitudinal 

 axis of head forming a right angle with axis of trunk. Occiput 

 compressed, praenuchal shield surmounted by a coronet. Bony 

 shields of bodyrings each with six tubercles or spines, those 

 of tail with four. Sides of head with prominences or spines. 

 Operculum with a convex keel, bent upvv^ards to branchial 

 opening. Cutaneous appendages generally absent. Dorsal mode- 

 rate, on an elevated base, situated on trunk and tail, opposite 

 to vent. Anal minute, usually present. Pectorals short and 

 broad. Ventrals absent. Broodorgan a permanent egg pouch 

 at the base of the tail, permanently closed by median coales- 



