126 



pterygoids with 2 3 teeth. No scales. Luminous organs: a 

 small, black suborbital, two operculars, the dorsal one below 

 the level of the eye, the ventral one on the level of the 

 lower base of the pectorals, 9 10 between the branchiostegals. 

 On each side of the body 13 in a ventral series between 

 isthmus and ventrals, 4 between ventrals and anal of which 

 the 2 anterior ones are approximated, the second above the 

 anus. 13 between origin of anal and caudal. 7 in a lateral 

 series between operculum and vertical through ventrals, the 

 first of which higher up, outside the series. Whitish with 

 black markings on cheek and back. A pair of elongate spots 

 on the occiput, diverging from the nape toward the eyes. A 

 series of spots in the middle of the tail. Two transverse 

 streaks at the base of the caudal. Short oblique streaks be- 

 tween the bases of the dorsal and anal rays. Length 45 mm. 

 Habitat: Bali Sea (1310 M.)!; Macassar straits (450 M.) ! ; 

 Banda Sea (1000 2081 M.) ! ; Molucco passage (1500 M.) ! ; 

 Manipa straits (1536 M.) ! ; Halmahera Sea (1000 M.)!; Timor 

 Sea (421 M.) !. Indie, S. 2. 30'. East Atlantic between 

 46.3i' N. and Cape of Good Hope; Gulf of Panama. 



2. Cyclothone microdon (Gthr.). 



Gonostoma microdon Giinther, Ann. Mag. Nat. Hist. (5). II. 1878, p. 188. 

 Cyclothone lusca Goode & Bean, Bull. Mus. Comp. Zool. X. 1883, p. 221. 

 Neostoma quadrioculatum Vaillant, Exp. Scient. Travailleur & Talisman, Poissons, 



1888, p. 99. 



Cyclothone microdon Goode & Bean, Oceanic Ichthyology, 1896, p. 99. 

 Gonostoma microdon Alcock, Ann. Mag. Nat. Hist. (6). IV. 1898 1899, p. 399. 

 Cyclothone microdon Alcock, Descript. Catal. Indian Deep Sea Fishes, 1899, p. 141. 

 Cyclothone microdon Brauer, Deutsche Tiefsee-Exp. Tiefseefische, 1906, p. 82. 

 Cyclothone microdon Max Weber, Siboga-Exp. Fische, 1913, p. 1 8. 



Fig. 46. Cyclothone microdon (Gthr.). 



B. 12 13; D. 12 14; A. 17 21; P. 9 IO; V. 6. 

 Height 8, head 5; eye 10 12, half as long as snout and 

 interorbital space. Front slightly concave, laterally bordered 



