GONOSTOMATIDAE 293 



Photichthys argenteus, Hutton. [PI. II, figs, i and 2.] 



Phosichthys argenteus, Hutton, 1872, Cat. Fish. N. Zealand, p. 56. 



Photichthys argenteus, Hutton, 1873, Trans. N. Zealand Inst, v, p. 269, pi. xv; Giinther, 1887, 

 Deep-Sea Fish. 'Challenger', p. 178, pi. xlv, fig. A; Goode and Bean, 1895, Ocean. Ichth. p. 104, 

 fig. 122; Brauer, 1906, ' Valdivia' Tiefsee-Fische, p. 92, fig. 37; Gilchrist, 1922, Rep. Fish. Mar. 

 Biol. Surv. S. Afr. 11, Spec. Rep. iii, p. 55; Barnard, 1925, Ann. S. Afric. Mus. xxi, p. 150. 



St. 81. 18. vi. 26. 32° 45' 00" S, 8° 47' 00" W. 4J m. net, horizontal, 650 (-0) m. : 3 specimens, 

 68-75 "^ni- 



St. 86. 24. vi. 26. 33° 25' 00" S, 6° 31' 00" E. 42 m. net, horizontal, 1000 (-0) m. : i specimen, 

 40 mm. 



St. 87. 25. vi. 26. 33° 53' 45" S, 9° 26' 30" E. Young-fish trawl, 1000 (-0) m. : i specimen, 27 mm. 



St. 89. 28. vi. 26. 34° 05' 15" S, 16° 00' 45" E. Young-fish trawl, 1000 (-o)m.: 2 specimens, 

 18-31 mm. 



St. loi. 15. X. 26. 33° 50' to 34° 13' S, 16° 04' to 15° 49' E. 4I m. net, horizontal, 350-400 (-o)m.: 

 12 specimens, 28-165 mm. 



St. 258. 25. vi. 27. 35° 03' 30" S, 13° 55' 00" E. Young-fish trawl, 320-450 m.: 9 specimens, 

 24-32 mm. 



Depth of body 6\ to 6i in the length, length of head 4I to 4^ . Snout equal to or 

 shorter than eye, diameter of which is 4 to 4^ in length of head and about equal to 

 interorbital width. About 11 gill-rakers on lower part of anterior arch. Dorsal 12-13; 

 origin a little behind root of pelvic, equidistant from end of snout and base of caudal 

 or a little nearer the former. Anal 23-26. Pectoral with 9 rays. Pelvic 7; origin equi- 

 distant from base of pectoral and vent. Lower series of photophores consisting of 10 

 in front of pectoral, 14 or 15 from pectoral to pelvic, 15 or 16 from pelvic to origin of 

 anal, and 16 or 17 from anal to base of caudal; there are 33-34 (14 + 19 — 20) photo- 

 phores in the upper series. 



Described from 1 1 specimens, 27-240 mm. in length, including the type of the species. 



Hub. Atlantic; New Zealand. 



Genus Manducus, Goode and Bean 



Goode and Bean, 1895, Ocean. Ichth. p. 514. 



Lychnopoles, Garman, 1899, Mem. Mus. Camp. Zool. xxiv, p. 244. 



Eye of moderate size; second suborbital not greatly enlarged. Cleft of mouth wide, 

 the praemaxillary forming quite half the margin of the upper jaw; praemaxillary and 

 mandible with one or two irregular series of unequal teeth, maxillary with a single 

 series; each palatine with a single row of teeth, the anterior of which are enlarged; two 

 groups of small teeth on the vomer; a patch of minute teeth on each pterygoid. No 

 pseudobranchiae ; gill-openings very wide; gill-rakers rather long, comparatively few 

 in number. Scales present. Two series of conspicuous photophores along each side of 

 the abdomen, another row along the region of the lateral line, and some additional series 

 of smaller and less distinct spots on the sides. Dorsal 10-16; origin nearer to base of 



