The Blenniidce. of South Africa. 119 



patch on base (which is dark brown) of pectorals. Pectoral 

 and caudal fins semi-transparent and of a light greenish-yellow 

 with rows of dark spots along the rays ; anal yellowish-green 

 between the dark body bands ; soft dorsal semi-transparent about f 

 of its extent ; ventrals pale greenish-yellow with dark spots ; upper 

 part of head black ; a small white spot on base of caudal. 

 One specimen (female) 79 mm. in length, from Kalk Bay. 



CLINUS MUS, n. sp. 

 (Mouse Klipfish.) 



Teeth, a row of strong conical teeth on each jaw, with a short 

 inner row on anterior part of jaw ; a curved band on vomer. Depth 

 of body 3J to 4 times in total length excluding caudal, length of head 

 5 to 5^ times. Distance from eye to point of snout 1 to 1J times 

 diameter of eye, which equals the interorbital width and is 4^ to 54- 

 times in length of head. Head small, upper profile almost straight, 

 interorbital space convex ; snout short ; cleft of mouth oblique, 

 upper lip slightly turned up and lower lip slightly projecting, maxil- 

 lary reaches to vertical of anterior margin of orbits. No orbital 

 tentacles. 



Dorsal in xxiii-xxiv 3-4 ; commences in line with posterior 

 margin of preoperculum and does not reach caudal, a long slender 

 peduncle being left whose depth is generally about f the length of 

 its free portion, which is -J- to length of head. The first 3 spines 

 are strong and erect and about i length of head, the 2nd spine 

 being often a little higher than the other two ; they are separated 

 from the remaining spines by a membranous space about equal to the 

 distance between the bases of the 1st and 3rd spines, and the trans- 

 parent membrane joining them to the rest of the fin is attached low 

 down near the base of the 4th spine, giving the appearance of a 

 separate crest with its interspinous membranes incised. In the rest 

 of the fin the membrane between each group of 2 or 3 spines is 

 transparent, the anterior spine in each group being the longest ; the 

 first group, which is composed of the 4th and 5th spines, is the 

 lowest ; the spines of the succeeding groups becoming gradually 

 higher until those of the last group are a trifle longer than the spines 

 of the crest. The first soft rays are a little apart from the posterior 

 ones, which are much shorter, and the connecting membrane is trans- 

 parent ; the 1st and sometimes the 2nd ray being a little longer than 

 the adjacent spines. Pectorals 10-11 ; t length of head, the four 

 middle rays longest and w r ith scalloped membranes, the membranes 

 of outer rays incised. Ventrals i 3 ; longest ray f to i length of 



