FISHES. -MCCULLOCH. 20 



aa. Lateral row of scutes merging into those on the upper 

 edge of the tail behind the dorsal fin. 

 c. Depth of the tail behind the dorsal 4 or more in the 

 base of that fin. Depth of snout 6 or more in its 

 length. 

 d. Scutes intensely spiny and convex : — spinosissimus. 

 dd. Scutes rugose with one spine and flatter :^ — 



jasciatus. 

 cc. Depth of the tail behind the dorsal about 3 in the base 

 of that fin. Depth of snout 5 in its length. 



e. Scutes with rows of spines and little convex : — 



rohushis. 

 Genus Hippocampus, Rafinesqiie. 

 Hippocampus abdominalis, Lesson. 

 (Plate vi., fig. I.) 



Hippocampus abdominalis, Lesson in Ferussac, Bull. Sci. 

 Nat., xi., 1827, p. 127; id., Giinther, Brit. Mus. Cat. 

 Fish., viii., 1870, p. 199; id., Klunzinger, Sitzb. Akad. 

 Wiss. Wien., Ixxx., i., p. 420; id., Johnston, Proc. Rov. 

 Soc. Tasm., 1882 (1883), p. 135; id., Waite, Rec. Cantb. 

 Mus., i.. No. I, 1907, p. 15; id., loc. cit., 191 1, p. 175, 

 pi. xxviii. ; id., Duncker, Faun. Siidwest-Austr. ii., 1909, 

 p. 247. 



The specimen figured is a very large one from Merimbula, 

 near Twofold Bay, New South Wales, where this species is 

 said to be common. It is recorded from New Zealand, Tas- 

 mania and Victoria, while Giinther records a specimen in the 

 British Museum from Sydney which was presented by Sir 

 John Richardson. If this specimen really came from Port 

 Jackson the species must be very rare here, as it has not been 

 included in any of the catalogues of New South Wales fishes, 

 nor have any local specimens come under my notice. 



Hippocampus graciliformis, sp. nov. 

 (Plate vi., fig. 2.) 



D. 27? P. 16. Rings 12 + 45. 



Body slender, its greatest depth being only i'5 the width 

 behind the pectorals. Tail nearly twice as long as the dis- 

 tance between the tip of the coronet and the vent. Snout 

 very short and thick, as long as the postorbital portion of the 

 head. Eye if in the snout. Supra-orbital spines low and 

 triangular, converging before the eyes where they form a 

 prominent keel on the proximal portion of the snout. Behind 

 the eyes the profile extends obliquely upwards to just before- 



