168 SYNGXATIIIDiE. 



the head, ^vith a low rough median ridge. Interorbital space flat, 

 broad, witli the orbital edges prominent, smooth ; occiput and nape 

 with a median ridge ; eyes large. Operculum finely radiated. Body 

 deeper than broad ; shields •without spines. The length of the body 

 is contained once and two-thirds in that of the tail. Vent below 

 the middle of the dorsal fin, which stands on seven rings. Caudal 

 fin extremely small. Egg-pouch not half as long as the tail. 

 China. 



a. Type of the species, 12 inches long. Presented by Vice-Admiral 



Sir £. Belcher. 



Dr. Kaup states that the British Museum possesses two examples ; 

 there is only one now in this collection. 



25. Syngnathus intermedius. 



Trachyrliampbus intermedius, Kaup, Lophohr. p. 24. 

 Osseous rings 21-|-x. 



The length of the snout equals that of the remaining part of the 

 head. The dorsal fin stands on six rings. (Kaup.) 

 China or Japan. 



26. Sjrngnathus ceyloneusis. 

 D. 26. Osseous rings 24 + 46. 



Base of the dorsal fin elevated. The lateral hne is bent down- 

 wards, and passes into the lower edge of the tail. Snout longer than 

 the remaining part of the head, with a slight ridge above. Inter- 

 orbital space nearly flat ; occiput and nape with a median smooth 

 ridge. Operculum finely radiated. Ej'e rather large. The length 

 of the head is contained thrice and one-fifth in that of the tnmk, 

 the length of the body (with the head) once and one-half in that of 

 the tail. Trunk rather deeper than broad. Vent below the be- 

 ginning of the second third of the dorsal fin. Caudal fin well de- 

 veloped. Upperside of the tail much narrower than lower. Colo- 

 ration indistinct. 



Ceylon ; Zanzibar. 



ff. Female, 9^ inches long. Ceylon. 



b. Female, 6| inches long. Zanzibar. Presented by Lieut.-Col. 



Playfair. 



27. Syngnathus zanzibarensis. 



Oi'mther, in Fish. Zanz. p. 140, pi. 20. ii<^. 5. 



D. 26. Osseous rings 22-1-59-63. 



Base of the dorsal fin elevated. Snout as long as the distance 

 between the anterior margin of the orbit and the extremity of the 

 ]>cctoral fin, without ridge above. Interorbital space rather broad, 

 concave ; occiput and nape with a median ridge ; eyes of moderate 

 size. Operculum finely radiated. Trunk rather deeper than broad 



