145 



The ova are not arranged in a pleated band in the ovaries as they are in 

 Gonostoma. 



The stomach is much like that of Gonostoma, having a remarkably thick 

 submucous coat, which, under the microscope, has much the structure of the 

 cortex of mammalian lymph-gland. 



118. Chauliodus pammelas, Alcock. 



Chauliodus pammelas, Alcock, Ann. Mag. Nat. Hiat., Nov. 1892, p. 355 : Illustrations of the Zoology op thi 

 Investigator, Fishes, pl. XXX. fig. 4. 



B. 16. D. 6. A. 12. P. 11-12. V. 7. 



Differs from C. Sloanii in the following points : — 



The length of the eye is considerably more than that of the snout proper, 

 and is a third that of the head. 



The skin is naked, although it is mapped out into rhomboidal and hexagonal 

 depressions each of which has a luminous spot in the centre, and in life was 

 covered with a thick coat of transparent mucus tissue full of capillary blood- 

 vessels. 



The luminous organs are much less conspicuous. 



The body fins and iris are uniform jet black, which has not altered after 

 nearly seven years' immersion in spirit. 



Length 10 inches. 



Arabian Sea, in the neighbourhood of Minnikoy, 1370 fathoms. 



Regd. No. 13183. 



This is undoubtedly a good species. 



Family Stomiatidce. 



Skin generally naked, sometimes with thin deciduous scales. A hyoid 

 barbel, which may be either free or attached to the mandibular sym- 

 physis. Margin of the upper jaw formed by the premaxilla and maxilla, 

 which are both toothed. Opercular apparatus little developed or rudi- 

 mentary. Gill-opening, like the mouth-cleft, very wide. Pseudobranchiae 

 none. Adipose fin present or absent. Air-bladder present or absent. 



The presence of four representatives of this family has been brought to 

 light by the " Investigator." 



I have followed Dr. Gunther in keeping this family distinct. My own 

 opinion is that it might be united with the Sternoptychidae. 

 19' 



