CHILODIPTERIDAE 349 



extending to below anterior half of eye. 22 gill-rakers on lower part of anterior arch. 

 36 scales in a longitudinal series; 4 between origin of first dorsal and lateral line; 

 2+6+27 scales in the lateral line, which is interrupted near its origin and again just 

 behind first dorsal fin. Dorsal VIII + I 9 ; origin of first dorsal i^ times as distant from 

 base of caudal as from end of snout; first spine very short; fourth longest, more than 

 I length of head. Anal III 7. Pectoral with 14 or 15 rays, about as long as head. Pelvic I 

 5, below base of pectoral. Dark brownish; head lighter, with silvery reflections. 



Described from a single specimen, 80 mm. in length; holotype of the species. 



Hab. Off South Africa. 



Named in honour of Mr CD. Sherborn, to whose extensive and unrivalled know- 

 ledge of matters of nomenclature the author is greatly indebted, as a slight appreciation 

 of his magnificent work, the Index Animaliiim. 



Family CHIASMODONTIDAE 



I have given an account of the osteology of this interesting family in a recent paper, 

 together with a systematic revision of the genera, which includes the material obtained 

 by the 'Discovery' (1929, Ann. Mag. Nat. Hist. Ser. 10, in, p. 529). 



Chiasmodon niger, Johnson, 1863. 

 Norman, t.c. p. 538, fig. 8 a. 



St. 239. 2. vi. 27. 46° 56' 00" S, 46° 03' 00" W. 4^ m. net, horizontal, 1050-1350 (-0) m. : i 

 specimen, 60 mm. 



St. 285. 16. viii. 27. 2° 43' 30" S, 00° 56' 30" W. 4~2- m. net, horizontal, 125-175 (-0) m. : i 

 specimen, 42 mm. 



II. xi. 25. 6° 55' N, 15° 54' W. 2 m. tow-net, horizontal, 800 (-0) m. : i specimen, 58 mm. 



Hab. Atlantic; Caribbean Sea; Indian Ocean. 



Chiasmodon bolangeri, Osorio.^ 



Osorio, 1909, Mem. Mus. Socage, i, p. 22, pi. ii, fig. i. 

 Chiasmodon microcephalus, Norman, t.c. p. 539, fig. 8 b. 



St. 76. 5. vi. 26. 39° 50' 30" S, 36° 23' 00" W. 42 m. net, horizontal, 1500 (-0) m. : 2 specimens, 

 85-1 1 5 mm. 



St. 86. 24.vi.26. 33° 25' 00" S, 6° 31' 00" E. 4|m. net, horizontal, 1000 (-o)m.: I specimen, 48mm. 

 Hab. Atlantic. 



Dysalotus alcocki, MacGilchrist 1905. 



Norman, t.c. p. 541, fig. 9. 



St. 245. lo.vi. 27. 38°2o'oo''S, 28° i8'oo"W. 4J m. net, horizontal, 1800-2000 m.: i specimen, 

 145 mm. 

 Hab. South Atlantic; Bay of Bengal. 



^ The paper by Osorio, entitled Contribuigao para o conhecimento da Fauna Bathypelagica visinha das 

 Castas de Portugal, was never included in the Zoological Record, and as unknown to me until quite recently. 



