BY J. DOUGLAS OGILBY. 9 
Malay Archipelago to India and Japan; North Coast 
of Australia; West Indies (Porto Rico).? Species 5. 
Analysis of Austro- Malayan Species. 
a. Depth of body 75 to 95 in the total length. 
b. Head 4 times as deep as long. 
c. Length of head 15 to 22 in the total length; cleft of mouth 5 to 
54 in the length of the head ; no trace of pectoral fins. 
ane as 1. javanicus. 
aa. Depth of body 40 to 51 in the total length. 
d. Head less than 4 times as deep as long. 
e. Length of head 14% in the totai length; cleft of mouth 44 
in the length of the head; no trace of pectoral fins. 
Bt as = 2. intermedius 
ee. Length of head J2 in the total length ; ‘cleft of mouth 41 to 
44 in the length of the head; pectoral fins visible but 
very small. 
Be 3. abbreviatus. + 
dd. Head more than 4 times as deep as long. 
f. Length of head 9 .n the total length; cleft of mouth 5 
in the Length of the head; pectoral fins visible but very 
small, 
..4. macrocephalus 
APHTHALMICHTHYS INTERMEDIUS, sp. nov. 
Body anguilliform, its depth 34 in the length of the 
head, 36 in the distance between the tip of the snout and 
the vent, and about 51 in the total length. Length of 
head from snout to gill-open ng a little more than 10 in the 
trunk and 143 in the tota' length. Diameter of eye 24 
in the length of the snout. Snout with convex profile, 7 
in the length of the head. Cle‘t of mouth extending some- 
what beyond the vert:cal from the posterior border of the 
eye, its length from the tip of the snout 45 in that of the 
head. A few of the front teeth on both jaws and vomer 
enlarged and fang-like.  Gill- eric much wider than 
the eye, the length of the slit 4 of the isthmus. Length 
of tail 23 in that of of the hood and trunk. Dorsal 
and anal fins represented by inconspicuous dermal folds, 
which originate on the same plane about three fourths of 
5’ Anhthalmichthys caribbeus, Gill & Smith, Science, (2) xi, 1900, p. 974. 
+The Japanese fish described as A. abbreviatus by Jordan and Snyder 
(Proc. U.S. Nat. Mus., xxiii, 1901, p. 877), differs from the typical form in 
its longer and much shallower head, shorter cleft of mouth, better developed 
fins, etc., and may well be characterized as a new species to which the 
name Aphthalmichthys affinis might suitably be applied. 
