270 BLENNIID^. 



and anal fins. Chin and the lower part of the opercles witli wliitish 

 spots. 



Cape of Good Hope. 

 a, h. Adult. Cape. 



18. Clinus heterodon. 

 Cuv. 8f Val xi. p. 394. 



-pj 30 A- 2 

 JJ. -g . A. -. 



The height of the hody is contained four times and a half in the 

 total length. Teeth of the jaws in a single series, except in the 

 middle, where they form a group. Tentacles none. The dorsal ex- 

 tends on to the base of the caudal, is continuous, and has the soft 

 portion higher than the spinous. Brown. ( Val.) 



Cape of Good Hope. 



19. Clinus uematopterus. 



B.f. A.|. V.2. 



The nine anterior dorsal spines terminate in a lobe which? is coin- 

 posed of filaments. 

 Sea of China, 



a. Sea of China. Presented by Captain Sir E. Belcher, C.B. 



Descrijotion of the specimen. — The height of the body is contained 

 five times in the total length, the length of the head four times 

 and a fourth. The snout is somewhat shorter than the diameter 

 of the eye, which is contained three times and a half in the length 

 of the head. The jaws are equal in length anteriorly, and the 

 maxillary reaches to the vertical from the centre of the eye. The 

 jaws and the vomer are armed with viLliform teeth, the palatine 

 bones are smooth. The interorbital space is flat, and its width is 

 one-half the horizontal diameter of the eye. Nostril and the super- 

 ciliary margin with a fringed tentacle of moderate length ; none on 

 the neck. There are series of very distinct pores along the usual 

 course of the system of muciferous channels. Pseudobranchiae ; a 

 very small foramen behind the fourth gill, at its inferior portion. 

 The dorsal fin commences immediately behind the occiput : the four 

 anterior spines increase somewhat in length, the remainder being 

 nearly of equal height, except the six posterior, which again become 

 gradually a little longer ; the two anterior soft rays exceed the last 

 spine somewhat in length ; the last ray is fixed to the back of the 

 tail by a membrane, which is not continued on the caudal fin. The 

 nine anterior dorsal spines are provided with a skinny lobe com- 

 posed of filaments, and fixed posteriorly to the top of the spine. 

 The caudal fin is subtruncated, and composed of thirteen simple 

 rays. The anal fin commences in the vertical from the sixteenth 

 dorsal spine, and is much lower than the dorsal ; the rays are simple. 

 The pectoral is rounded, and extends to the origin of the anal. The 

 ventral is composed of one small spine, which is hidden, and two 

 rays, the interior of which is the longer ; it is inserted on the throat, 



