352 Frerp Museum or Narturat History — Zoétoey, Vor. X. 
81. Philypnus maculatus (Giinther). 
Lembus maculatus Ginther, Cat. Fish. Brit. Mus., I, 1859, 505 (Andes 
of Ecuador). 
Philypnus lateralis Gill, Proc. Ac. Nat. Sci. Phila., 1860, 123 (Cape San 
Lucas); Jordan & Evermann, Bull. U. S. Nat. Mus., XLVII, 1898, 
2195 (Rio Presidio, Mazatlan). 
Eleotris lateralis Ganther, Cat. Fish. Brit. Mus., III, 1861, 122 (Cape 
San Lucas). 
Eleotris lembus Ganther, Cat. Fish. Brit. Mus., III, 1861, 121 (Western 
Ecuador). 
’ Gobiomorus lateralis Eigenmann & Fordice, Proc. Ac. Nat. Sci. Phila., 
1885, 69. 
Gobiomorus maculatus Eigenmann & Fordice, Proc. Ac. Nat. Sci. Phila., 
1885, 70. 
Philypnus maculatus Regan, Biol. Cent. Amer., Pisces, 1906, 5; Meek, 
Field Mus. Nat. Hist. Pub., Zodl. Ser., X, 1914, 130 (Pacific slope 
of Costa Rica). 
Head 2.75 to 3.6; depth 4.25 to 5; D. VI-I, 9; A. I, 10 or rarely I, 11; 
scales 56 to 59. 
Body elongate; not much deeper than wide anteriorly, compressed 
posteriorly; head long, somewhat depressed, its width at preopercular 
margin 1.73 to 2.2 in its length; cheeks nearly vertical; snout long, 
depressed, 2.86 to 3.4 in head; eye 4.35 to 7.25; interorbital 3.95 to 6; 
mouth large, oblique; lower jaw projecting; maxillary reaching middle 
of eye, 2.2 to 2.4 in head; teeth small, pointed, all depressable except 
the outer ones, in bands on jaws and on vomer; gill-rakers undeveloped; 
gill-arches with small, elevated patches of pointed teeth; lateral line 
wanting; scales a little larger than in preceding species, ctenoid; origin 
of spinous dorsal about an eye’s diameter behind base of pectorals, the 
spines weak and variable in length, sometimes reaching origin of soft 
dorsal when deflexed; origin of soft dorsal an eye’s diameter in advance 
of origin of anal, the rays variable in length, the margin convex; caudal 
fin scaly at base, its margin rounded; anal fin similar to soft dorsal; 
ventral fins inserted slightly behind base of pectorals, rather short, 
failing to reach vent; pectoral fins reaching to or past tips of ventrals, 
1.4 to 1.84 in head. 
Color brownish. Young with a dark lateral band or blotches along 
side, the blotches usually persisting. Fins with much red in life; the 
dorsals, caudal and usually the anal with dusky spots, which are, how- 
ever, notably smaller and less distinct than in the preceding species; 
pectoral fins without spots or bars. 
There are 425 specimens in the present collection, ranging from 40 
