BLENNIIDAE. 151 
General color in alcohol, dull reddish brown; muzzle, gular region and 
gillmembranes pale; a short dusky bar from eye downward and backward to 
tip of maxillary; diffuse dusky blotch on opercle; scales with dusky margin; 
five broad dark brown cross-bars on body, the first extending from front of 
second dorsal, third from front of soft dorsal, fourth from just anterior to 
posterior end of soft dorsal; fifth across caudal peduncle; on the interspaces 
between second and third and third and fourth cross-bars a narrow dusky line 
extending downward from lateral line, and between fourth and fifth a narrow 
dusky cross-bar; membrane of first dorsal and anterior part of second dorsal 
black, rest of dorsal fins pale; ventrals pale; pectorals pale with about five broad 
faint dusky wavy cross-bars; anal pale, membrane broken and gone; caudal 
pale with a narrow dusky bar across base, followed by a diffuse dusky blotch, 
and a broad jet black terminal margin. 
We also have seven other small specimens 33 to #2 inch long from Acapulco, 
anal rays 16and17. M.C. Z. 29587 (4 specimens). 
The general color is pale straw. Five of these have three black spots with 
white centres on the top of head, one of the spots is behind each eye and one of 
occiput just before first dorsal; another (the smallest) has the three black dots 
similarly situated but without the white centre; another (the largest) has but 
one black spot, it is on the occiput and lacks the white centre; a short black 
cross-bar at posterior base of isthmus in front of ventral, another on belly just 
back of base of ventral; a black dot at base of each soft dorsal ray and two on 
top of caudal peduncle and two on its lower edge; base of each anal ray black, 
this color joined to the ray behind it by a black line; a black line across base of 
caudal. 
The largest of these seven specimens shows traces of dusky bars on caudal 
fin. 
Jordan and Evermann (loc. cit.) state that the anal is II, 11 (misprinted IT, 
17) in the original description. This could not be verified from the fact that 
the Type can not be found. The present specimens, if correctly identified, show 
that the original count was probably correct. 
Malacoctenus delalandii (Cuvier & VALENCIENNES). 
JorpAN & EvERMANN, Bull. 47, U.S. Nat. Mus., 1898, pt. 3, p. 2358. 
Clinus delalandii Cuv. & Vau., Hist. Nat. Poiss., 1836, 11, p. 279 (378). 
One specimen 23 inches long from Perico Island, pool. 
One specimen, M. C. Z. 29607, 17s inches long from Acapulco. 
