gilbert: the lantern-fishies of japan 91 



from the inferior preorbital in D. rafinesquei, theta, and nanus, and is developed 

 in specimens 12 mm. long. The anterior and inferior orbital margins densely 

 black. Suprapectoral low, midway between upper pectoral ray and lateral line. 

 First pair of thoracics nearest the median line, second and third pairs equidis- 

 tant from it, fifth pair separated by more than twice the distance separating 

 the third pair; fourth thoracic elevated but little above the ventral base, a httle 

 behind the vertical from the third thoracic. Supraventral high, its distance 

 from lateral line two-fifths the distance from base of ventrals. Second and 

 third ventrals unusually high, the third on middle of area below lateral line, a 

 little below the line joining the first and second, and sUghtly in advance of the 

 vertical from the fourth. First supra-anal at the side of the vent, in fine with 

 the first, fourth and fifth ventrals and apparently forming one of the ventral 

 series. Line of the supra-anals slightly angulated, the second in advance of the 

 line joining first and third. Third supra-anal not in contact with the lateral 

 fine, but under the lower part of its 18th scale. Antero-anals 6, the first and 

 last elevated, the others in a straight line parallel to anal base, the first about 

 on level of middle supra-anal, in a line joining upper supra-anal and second 

 antero-anal; the last shghtly behind the line joining the fifth antero-anal and the 

 posterolateral, equidistant from both. Posterolateral immediately below the 

 lateral fine. Postero-anals 5. Precaudals 4, the first two placed horizontally 

 and lying deeper than the postero-anals, the third a little elevated and more 

 widely spaced, the fourth much more widely spaced, near the lateral fine, and 

 but little behind the third. 



Glandular bodies are always connected with the suprapectoral, supra-anal, 

 the posterolateral, and the upper precaudal; usually also with both infra- 

 pectorals, the fourth thoracic and the second and third ventrals; occasionally 

 with the first antero-anal and the third precaudal. 



General color blackish, with metallic bluish reflections. 



A number of cotypes from the following Stations, and also from Sagami 

 Bay (C. M. No. 4606). The type is deposited in the U. S. National Museum. 



List of Stations. 

 4926. Colnett Strait, south of Kagoshima Intermediate net, 300 fathoms. 

 5058. Suruga Bay. Intermediate net, 300 fathoms, 



5063. Suruga Bay. Intermediate net, 300 fathoms. 



5064. Suruga Bay. Intermediate net, 300 fathoms. 

 5084. Suruga Bay. Intermediate net, 300 fathoms. 



