GOBIOIDS. UZ 
which extend forward upon the interorbital space. Opereulum with a short 
rather weak down and backward-directed spine. Epicoracoid long, slender, 
extending down behind the base of the pectoral. 
Vertical fins confluent. Dorsal origin above the base of the pectoral, 
slightly in advance of a vertical from the vent. No ventral disk; pelvis 
rudimentary, the basal elements of considerable size, Plate XXVIL., fig. 
2°-2'. No trace of a disk appears externally, the pelvis is only to be dis- 
covered by removal of the tissues close behind the humeral symphysis. 
Upper portion of the pectoral with about eighteen rays separated from the 
lower portion of four, rarely five, rays by an interspace of membrane sup- 
ported by a couple of short rays, Plate XXVIIL., fig. 2%. Longest rays of 
the pectoral, in the upper portion, nearly as long as the head ; the majority 
of the rays have filamentary prolongations; the four or five rays in the 
lower or anterior portion are only about half as long as the others. Eegs 
large, nearly as large as the eye. 
Black on the sides and lower surface of the head, on the abdomen and 
the fins; remainder of the surface blackish to clouded brownish. 
Total length five inches or more. 
Station. Latitude. Longitude. Depth. Temperature, Bottom. 
3382 6° 21’ N. 80° 41’ W. 1793 fathoms 39.8° EF. Green mud. 
GOBIOIDS. 
Judging from what is known of them at the present the Gobies do not 
lend themselves to the development of bathybial species as readily as less 
active forms in other groups. Only four species have been reported from 
depths greater than a hundred and fifty fathoms. The greatest depth is 
that assigned Calhonymus Agassizii G. and B., 1888, at three hundred and 
forty fathoms, in the Gulf of Mexico. This species was identified by Goode 
and Bean for Agassiz’s Three Cruises of the United States Coast and 
Geodetic Survey Steamer “ Blake’ and published under this name in Vol. 
II., p. 29, fig. 207; for reasons they do not mention it has been refigured 
and described by them under the name Cullionymus himantophorus G. B., 
1896, Oc. Ich., 296, Pl. LXXVI., fig. 268. The depth reported by Vaillant, 
1888, for Callionymus phaéton Giint., taken by the steamer “ Talisman ” off the 
Azores, is three hundred and six fathoms; this author also notes a depth of 
two hundred and forty-three fathoms for Golius Lesueurii Risso, off the 
European coasts. Species of these genera among the collections of the 
