. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 52 bulletin: museum of comparative zoology the latter organ as from the upper SAO which is situated at a distance of only about one-half of its own diameter below the lateral line well in advance of the vertical from the first AO. AO 6 + ? AO anteriores all on the same level. AO posteriores completely lost in type. 1 POL, somewhat behind the last AO anterior and about one diameter below the lateral line. There are 2 PRC'S at the lower margin of the caudal fin base and a last PRC in the lateral line well behind these.
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 52 bulletin: museum of comparative zoology the latter organ as from the upper SAO which is situated at a distance of only about one-half of its own diameter below the lateral line well in advance of the vertical from the first AO. AO 6 + ? AO anteriores all on the same level. AO posteriores completely lost in type. 1 POL, somewhat behind the last AO anterior and about one diameter below the lateral line. There are 2 PRC'S at the lower margin of the caudal fin base and a last PRC in the lateral line well behind these. It is possible but very uncertain whether certain slight markings in this region may be taken to indicate that a third PRC may have been present well above the lower two organs of the series, so that the series as a whole would form a blunt Fig. 5. Lampadena luminosa (Garman) The infracaudal luminous plate occupies about 1/3-2/5 of the ven- tral free edge of the caudal peduncle, the supracaudal plate about 2/7-1/3 of the distance between caudal and adipose dorsal fins. Total length without caudal fin about 100 mm. Proportions in per- cent of this measurement: Length of head 29. Greatest depth of body 19. Diameter of eye Length of snout Length of lower jaw 21. Snout to dorsal fin 40. Snout to ventrals 43. Snout to anal fin 61. It is very unfortunate that the condition of the type still leaves in doubt the number of PRC's which would actually be present in an unmolested specimen since the claim of a specific distinction between the Pacific L. luminosa and an Atlantic L. nitida ^ has been made upon the assumption that 4 (3 -f 1) PRC should be present in the form described by Garman. The basis for this assumption is found in the description of a Pacific specimen from the coast of Sumatra rendered •A. v. Taaning: Synopsis of the Scopelids in the North Atlantic. Vidensk. Medd. Dansk Naturhist. Foren., 86, 1928, p. 63. Vide: J. R. Norman: Oceanic Fishes and Flatfis
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