194 1 CATALOGUE OF FISHES OF TORTUGAS ^ 



Family MELANOSTOMIATIDAE 



Echiostoma barbatum Lowe 



Dr. Longley in his notebook listed a blackfish 87 mm. long, taken in 367 to 375 

 fathoms, described as having a barbel under chin, reaching slightly beyond base 

 of pectoral, with a cylindrical stalk, its tip bulbous, 1.5 times as long as wide, and 

 pale green; a flattened element with semicircular outline (flat distally) connected 

 with its tip, bearing four lateral threadlike branches at base, each thread being 

 rather larger than half the flat edge from which they spring, and bulbous at tip; 

 this element and distal bulbs rosy. Pectoral divided; lower 3 rays short and 

 united about two-fifths of their length to upper long part, composed of about 

 6 rays; ventrals abdominal, with 8 rays; D. about 11; A. 16; both dorsal and 

 anal reaching almost to caudal. 



Dr. Longley was uncertain as to the identification. In his collection is a speci- 

 men 80 mm. long, which may be the one described by him, though now 7 mm. 

 shorter. I have compared the Tortugas specimen with others in the National 

 Museum, as well as with the recent literature, and am confident that the Tor- 

 tugas fish are identical with American specimens generally identified as this 

 species. I follow Parr (Bull. Bingham Oceanog. Coll., vol. 3, art 2, 1927, p. 53) 

 in placing this genus and species in the family Melanostomiatidae. 



Recorded from Madeira and Massachusetts, and southward in the Gulf Stream. 



S.F.H. 



Family GONOSTOMIDAE 



Yarrella blackfordi Goode and Bean 



Dr. Longley listed in his notes 2 specimens, each about 220 mm. long, which 

 were taken in 367 to 375 fathoms. A third specimen, 78 mm. long to base of 

 caudal, in damaged condition, is in the Tortugas collection. The following pro- 

 portions are based on this fish: Head 4.0; depth 6.1. Eye in head 4.25; snout 4.75; 

 interorbital 6.75; maxillary 1.3; caudal peduncle 3.9. Body moderately strongly 

 compressed, tapering rather sharply toward tail; pectorals placed low, under 

 margin of opercle; ventrals very close together, inserted about an eye's diameter 

 in advance of dorsal; anal beginning somewhat posterior to middle of base of 

 dorsal. D. 13; A. about 25 (damaged); P. 8; V. 6; gill rakers 13. The photo- 

 phores, which are confined to the ventral surface, essentially agree in position 

 and number with the type, with which the Tortugas specimen was compared. 

 The maxillary reaches far beyond the eye, and is much longer than the post- 

 orbital part of the head, both in the type and in the Tortugas specimen, contrary 

 to the statement in the original description. The lower jaw projects sharply, and 

 is bent upward anteriorly. 



Inhabits deep water of the Gulf Stream. S. F. H. 



Cyclothone microdon (Giinther) 



I find no specimens among the Tortugas material, and only the following in 

 Dr. Longley's notes: Two specimens, each about 50 mm. long, taken in 367 to 



