Description 



D. 12-13; A. 22-23; P. 14-15; AO 17-19; gill rakers 6+1 + 17, total 24; vertebrae 40 (39). 



Three SAO (seldom 4) in nearly straight, very slightly oblique line; SAOij interspace a 

 little greater than that of SAO-:). Pre juxtaposed. Photophores light, silvery. Greatest depth of 

 body not more than 25*% of SL, usually less. 



Males with 6 to 7 supracaudal luminous glands, rather trapezoidal in shape (Fig. 3); 

 females with 4 to 5 weakly outlined spots infracaudally. 



Size: To about 70 mm (Norman, 1930). 



Least depth of capture: To 77 m (Norman, 1930). 



Distribution: Possibly circumglobal in Antarctic waters below 41° S; has been taken most 

 often in the South Atlantic but also near Australia. 



Protomyctophum (Protomyctophum) normani 



(Taning, 1932) 



Fig. 5 — Protomyctophum (P.) normani, sex unknown, 34.0 mm. From Andriashev 



(1962, p. 231, fig. 10). 



Description 



D. 13; A. 22-23; P. 14-15; AO 15-17; gill rakers 6 (5-7) + 1 + 16-19, total 24-25 (22-27); . 

 vertebrae 37-38. 



SAO in a distinct, broadly obtuse angle; SAO,.j interspace a little greater than that of 

 SAO2.3. Pre nearly touching each other. Usually 3 AO behind end of anal base. Eye large, over 

 two-fifths of head length. Greatest depth of body 25-30'?^ of SL. 



Both supracaudal and infracaudal luminous glands may be present in each sex (definitely 

 in females) from 25 mm and larger. Caudal glands of males are similar to those of P. (H.) 

 crockeri; those of females are 2 to 4 small, overlapping, muddy-gray scales. 



Size: To about 60 mm. 



Least depth of capture: Andriashev ( 1962) listed 3 specimens taken with 4700 m of wire 

 out. 



Distribution: Probably circumglobal in sub-antarctic waters; known from near the Cape of 

 Good Hope, from east of New Zealand, and from the southeastern Atlantic Ocean. 

 Discussion 



This species is poorly known, and few specimens have been available for study. Becker 

 ( 1963a) reported that 8 specimens from the southwestern Atlantic differed from 3 specimens 

 from near New Zealand in having a blunter snout and fewer gill rakers (20-25 vs 25-26). 



16 



