2^2 PAPERS FROM TORTUGAS LABORATORY vol. xxxiv 



Seven specimens are included in the collection. Little remains of the color 

 described, other than the "sulphur yellow lines," now white, and the black spot 

 on the spinous dorsal in 5 of these fish. Two others, presumably the ones re- 

 moved from the stomach of a lizard fish, retain suggestions of five dark spots in 

 longitudinal series along side. 



Known heretofore only from Puerto Rico from 8.5 fathoms. S. F. H. 



Coryphopterus glaucofraenum Gill 1 



(Plate 29, figure 2) 



Coryphopterus glaucofraenum Gill, Proc. Acad. Nat. Sci. Philadelphia, vol. 15, 1863, p. 263 



— coast of Washington (by error, unless late students are at fault in associating with 



this the West Indian species to which names below refer). 

 Ctenogobius tortugae Jordan, Bull. U. S. Fish Conim., vol. 22, 1902 (1904), p. 541, pi. 1, 



fig. 1 — Tortugas, Florida. Koumans, Prelim, rev. gobioid fishes, 1931, p. 89. 

 Gobius translucens Nichols, Bull. Amer. Mus. Nat. Hist., vol. 34, 1915, p. 145, fig. 2 — San 



Juan, Puerto Rico. 



Common everywhere on bare bottom surrounding the coral stacks. Habitually 

 ascends the eroded faces of the larger Orbicellas. On the bank east of Bird Key 

 harbor the young were very common on small sand patches thrown up among 

 dead coral fragments by burrowing invertebrates. Farther east on a bare slope 

 similarly littered with dead coral there was a specimen to the square foot over a 

 large tract. A single example, somewhat reddish, was dredged in 40 fathoms 

 south of Loggerhead Key. 



Its freckling and adaptive changes in shade assimilate this fish to its usual 

 background. The pattern is divisible into surface and internal parts. In the super- 

 ficial pattern, one or two pairs of irregular streaks run from tip of snout to eye; 

 dorsal surface of conjunctiva figured with black or brown and lustrous white; a 

 pattern of dots and stripes of brown or brassy yellow, with lines and points of 

 silver, extending on head and body; nuchal crest with three, and back with eight 

 or nine other faint dark spots; a pair or a vertical dash at base of caudal; side of 

 nape with dusky penciling; a distinct stripe behind eye with a broken bluish line 

 below running through a darker nucleus above opercular border and continued 

 on body as a series of yellower flecks; a dusky streak, with a concurrent light one 

 below, extending from a dark point at angle of mouth, tangent to orbit, and to 

 pectoral base, represented behind the fin by spots; a third dark line lower on 

 cheek; and a spangling of blue on trunk. 



In the internal pattern, strong lines from the eyes pass back but little above the 

 brain, for the broad submedian streaks of pigment are seen through skin, flesh, 



1 Dr. Longley was in doubt as to the proper genus for this species, as is shown by the 

 following note attached to his manuscript: "Rhinogobius glaucofraenum until a better name 

 is discovered." He also had a marginal note, "Look up Beebe and Tee- Van." These authors 

 (Zoologica, vol. 13, 1932, p. 153) placed this species in the genus Lophogobius. Furthermore, 

 they reduced Parr's (Bull. Bingham Oceanog. Coll., vol. 3, art. 4, 1930, p. 122) Lophogobius 

 pallidas to the synonymy of L. glaucofraenum, a matter Dr. Longley also considered, as is 

 shown by another marginal note. In a recent paper (A. Hancock Pacific Exped., vol. 2, no. 7, 

 1938, p. 113) Ginsburg placed this species in the genus Coryphopterus. — S. F. H. 



