3H 



DISCOVERY REPORTS 



A coloured sketch of the barbel of this species was made by Mr E. R. Gunther on 

 board the ' Discovery'. The proximal swelling and the small swelling just behind it were 

 pale yellow, the large bulb in the distal portion turquoise, and the distal bulb cream- 

 coloured with a bright yellow tip. The central axis was said to be pigmented with black 

 along its centre, and all the bulbs and swellings were enclosed in a wide transparent 

 coating of pale blue. 



Fig. 23. Eustomias {Nominostomias) trewavasae. Holotype. (x 2.) [Barbel x 6.] 



Haplostomias tentaculatus, Regan and Trewavas. 



Regan and Trewavas, 1930, t.c. p. 109, pi. xi, fig. i, text-figs. 



St. loi. 15. X. 26. 33° 50' to 34° 13' Sj 16° 04' to 15° 49' E. 4|- m. net, horizontal, 850-950 m. : 

 I specimen, 204 mm. 



Depth of body equal to length of head, which is 8 in length of fish. Diameter of eye 

 5I in length of head, about as long as postocular luminous organ. Barbel twice as long 

 as head, with black stem and white ovate bulb; axis of stem prolonged along edge of 

 bulb, distally becoming free and forming a tentacle-like appendage. Dorsal 16. Anal 19. 

 Pectoral 5. Pelvic 7. Photophores — in ventral series I-P 8 + 2; P-V 27; V-A 15; 

 A-C 9 or 10: in lateral series 0-V 25 ; V-A 14. 



^^-"-'-'"^ 



Fig. 24. Haplostomias tentaculatus. (x i.) 



Described from a single specimen, 204 mm. in length. 



The largest specimen studied by Regan and Trewavas was 100 mm. in length, and the 

 accompanying figure illustrates the difference in the form of the body in the two fishes. 



Echiostoma tanneri (Gill, 1883). 



Regan and. Trewavas, t.c. p. 117, fig. 113. 



St. loi. 15. X. 26. 33° 50' to 34° 13' S, 16° 04' to 15° 49' E. ^\ m. net, horizontal, 850-950 m. : 

 2 specimens, 170-200 mm. 



Hab. Atlantic; Gulf of Mexico; Caribbean Sea. 



