397 
by series ( to 25) of smaller uneven teeth; maxillary with series (to 30) of 
small oblique teeth# Vomer toothless* Series G f small teeth on each palatine, 
increasing in size backwards; 5 to 7 pairs of teeth in 3 groups on basibranch- 
ials; teeth on gill arches fairly small# No barbel. Postocular luminous organ; 
rounded subocular organ below front eye edge in adult males# Serial photophores 
approximately equidistant, except 2 subcontiguous organs on each side at end of 
series on isthJljus; series on branchiostegal membrane. Dorsal and anal subequal 
with thin, colorless fin membranes* Pectoral present# Ventral with 6 rays, 
long and slender, reaching middle of anal* 
Apparently a single species as no distinctive characters have been establish¬ 
ed for Photostomias atrox Alcock from the Indian Ocean. 
Phot ost°mias guemi Collett 
Phot ostomias guer ni COLLETT, Bull, ^oc* Zool* France, vol.14, 1839, p.291. N* 
38 ° 34 * 30 ” W # 30 ° 43 * 30 ”, 1138 meters, off Azores. 
ti 
Photos tomias guerni LTJTKEN, Kon. Dansk. Vidensk. Selsk. Skrift. Kobenhavn, ser. 
6, vol.7, 1892, p.280, fig# (Atlantic). - GOODE and BEAN, Oceanic Ichth., 
1895, p.115, pi.37, fig.140 (compiled). - COLLETT, R£s. Camp. Sci. Monaco, 
vol.10, 1896, 'p.131, pl.l, fig.5 (type). - ZTJGMAYER, Res. Camp. Sci. Monaco, 
vol. 35, 1911, p#65, pi.3, figs# 1 -l~a (N# 31 ° 39 1 to N. 31 ° 40 1 30 ” 
c o 
W# 42 50 1 to W. 42 44 T 30, 3465). - PARR, Bull# Bingham Oceanogr. Col- 
A ,0 0 
flection, vol.3, art.2, December 30, 1927, p.102, text fig.13 (N. 20 to 32 
7J# 64 ° to 77 °, 4000 to 10000 feet). - REGAN and TREtTAVAS, Danish Dana Fx- 
ped. Oceanogr. Rep., No.6, March 10, 1930, p.134, pi.13, fig.l, (N. 12 to 
° ° o 
38 W. 7 to 34 , 50 to 5000 meters). - NORMAN, Discovery Rep., vol#2, 
o o o 
1930, p.317 (S. 00 to 56 ’ W. 14 8 * 30 ”, 250 meters? N, 13 25 * W. 
