15. HIPPOCAMPTTS. 201 



in males, in which its greatest depth is about half the length of the 

 head ; females still narrower. Tubercles prominent, acute, without 

 tentacles. Supraorbital spine erect, simple, pointed ; lower breast- 

 si)ines double on each side. Coronet rather low, connected by a 

 narrow concave, bony bridge with the occipital knob. The length 

 of the snout equals the distance between the anterior margin of the 

 orbit and gill-opening. Snout, head, body, and dorsal fin finely 

 reticulated with brown ; some specimens covered with minute white 

 dots besides. 



Fi'eycinet's Harbour. 



a. Several specimens, 6 inches long. Voyage of the ' Herald.' 



5. Hippocampus novae hollandise. 



Steindachner, Sitzgsber. Ak. Wiss. Wien, 18f>6, liii. p. 474, taf. 1. 

 tig. 2. 



Dorsal fin with sixteen or seventeen rays. Eleven body-rings. 

 Tubercles prominent, acute, without tentacles. Supraorbital spine 

 simple, slender. Coronet elevated ; that part of the coronet which 

 connects it with the occipital knob is long, strong, with the anterior 

 profile not concave. The length of the snout is equal to the distance 

 of the anterior margin of the eye from the gill-opening. Snout, 

 head, and body finely marbled and reticulated with brown. 



New South Wales. 



a, h, c, d. Numerous examples. Sydney. 



e. Very old specimen. South Australia. — In this example all the 

 tubercles are veiy obtuse and rounded off. 



6. Hippocampus ramulosus. 



Hippocampus ramulosus, Leach, Zool. Misc. i. 1814, p. 105, tab. 147 ; 



Loive, Fish, 3Iadeira, p. G, tab. 2 ; Kaiq), Lophohr. p. 10. 

 ? Hippocampus rosaceus, Risso, Eur. Merid. iii. p. 184. 



Dorsal fin with eighteen rays. Tubercles verj- prominent and 

 pointed, and many of them, especially those on the head, with rami- 

 fied tentacles. Coronet very elevated, its top with several points. 

 Length of the snout a little less than the distance between the hind 

 margin of the orbit and gill-opening, llose-coloured, indistinctly 

 marbled with brownish and white. Dorsal fin with a blackish sub- 

 marginal band. 



Madeira ; ? Mediterranean. 



a. Adult : type of the species. Old Collection. 



h-c. Adult. From the Collection of the Zoological Society. 



d, e. Half-grown. Madeira. 



7. Hippocampus longirostris. 



?Willuffhby, tab. J. 25. fig. 4. 



? Hippocampus longirostris, Cuv. Regne An. 



Hippocampus longirostris, Schleg. Faun. Japon. Poiss. p. 273. 



