During the period between May, 1966 and January, 1970, 31 specimens cf a deepsea percoid fish, Howella simplex (Parr), which has not been recorded from Japan, were collected in Suruga Bay, Shizuoka Perfecture.This species was first described (Parr, 1933) from Bahama Islands in the genus Bathysphyraenops, and later reported from the Indian Ocean (Mead and De Falla, 1965). On the basis of examination of materials from various institutions, we synonymize Bathysphyraenops Parr (1933) with Howella Ogilby (1898); the two major characters used for separating those genera by Parr are variable and generically insignificant. The specimens of Howella simplex from Suruga Bay represent the first record of the species from the Pacific Ocean, and the first record of the genus Howella from the northwestern region of the Pacific. Published and unpublished records indicate that the genus Howella is circumglobally distributed in the area between 60°N and 50°S latitude. We agree with Gosline (1966) in the placement of Howella in the family Percichthyidae.
The cigar shark, Isistius brasiliensis, recorded at first by Quoy and Gaimard (1824) in the Atlantic, has been shown to be cosmopolitan in the tropical and subtropical belts, but records in the Pacific are rather scarce taken in the waters near the Hawaiian Is., Christmas I., Galapagos Is., and off Peru, etc.The specimen (166.0 mm, female), identified here as I. brasiliensis, was colleced alive from the stomach content of a Scomberomorus sp.in June 1959 by M/S No.18 Ise Maru at 16°S, 97°W.The cigar shark is believed swallowed by this predator in the surface water.Comparing the measurements of the present specimen with those given by King and Ikehara (189.0 mm, female), there were found some differnce in proportional length of body parts to the total length, especially in preventral length.However, such morphological differences whether due to individual or local variation within the large Pacific population of the species may not be predicted at this moment.