178 STNGNATHID^. 



cross bar on the suture between every two ventral shields. Lower 

 side of the head and breast with deep brown dots. 



Australia. 

 a-e. Adult (7 inches long), half-grown, and young. Freycinet's 

 Harbour. Voyage of the ' Herald.' 



4. Ichthyocampus filum. 



D. 14. Osseous rings 16 + 47-48. 



Head and snout very short, the length of the former being two- 

 fifths of its distance from the vent. Snout turned upwards, one- 

 third of the length of the head. Head and body compressed, with- 

 out ridges. The length of the body (with the head) is contained 

 twice and two-thirds in that of the tail ; pouch as long as the 

 trunk, lined with soft membrane. Vent opposite to the middle of 

 the dorsal liu. Pectoral fin short and narrow, caudal fin well de- 

 veloped. Narrow brownish-black cross bars, corresponding to the 

 sutures between the body-rings. 



New Zealand ; Australia. 



a-c. Male and females, 4 inches long. Bay of Islands. Presented 



by Sir G. Grey. 

 d-e. Males. Freycinet's Harbour. 



4. NANNOCAMPUS. 



Body with obsolete ridges, the dorsal edges of the trunk and tail 

 being continuous. Pectoral fin none ; caudal rudimentary ; dorsal 

 fin short, opposite to the vent. Male with the egg-pouch on the tail, 

 formed by the dilated lower edges. 



Australia. 



1. Nannocampus subosseus. 



D. ca. 10. Osscons rings 16 + 35. 



Head and snout extremely short, the length of the former being 

 contained twice and two-thirds in its distance from the vent. Snout 

 not longer than deep, about two-sevenths of the length of the head. 

 The bones on the lower side of the head remarkably well ossified, 

 this side being as broad and convex as the upper. The entire head 

 finely granulated, without ridges. Bod}--ridges obsolete ; body 

 slightly compressed. The length of the body (with the head) is one- 

 half of that of the tail ; pouch as long as the trunk, formed by the 

 dilated lower caudal edges. Vent opposite to the fore part of the 

 dorsal fin. Caudal fin very small. Brown, finely marbled with 

 darker and lighter ; body and tail with some narrow, irregular 

 bluish cross bands. 



Freycinet's Harbour. 



(I. Male, dried, 90 millims. long. Voyage of the ' Herald." 



