136 TJ.S. NATIONAL MUSEUM BULLETIN 234 



The tentacles are short, stout, laterally compressed, and bear short, 

 slightly expanded clubs. The clubs are bordered by trabeculate 

 membranes and there is an aboral keel. The suckers on the club are 

 quadriserial throughoat, uniformally smaU distally but with the sucker 

 of the two inner rows 2 to 3 times as large as those of the outer rows. 

 The arrangement of the carpal suckers is exactly as shown in the figure. 

 The large hand suckers bear about 20 sharp teeth of which one in 

 each quadrant, especially in the adults, is enlarged and very sharp. 



The color in the specimens preserved in alcohol is yellowish brown 

 with a broad band of reddish purple in the dorsal midline. 



Type. — Museum d'Histoire Naturelle, Paris. 



Type locality. — Oualan (=Kusaie, CaroUne Islands). 



Discussion. — This small specimen differs somewhat from Sasaki's 

 description, especially in relation to the dentition of the arm and 

 tentacular suckers. These differences are undoubtedly due to the 

 difference in size. 



Distribution. — This is an Indo-Pacific species distributed from 

 the eastern Pacific, Cocos Island (Hoyle), to the Cape of Good Hope. 

 In the Pacific it is recorded from Japan (Sasaki); Okinawa (Pfeffer, 

 Sasaki); Formosa (Sasaki); PhiUppines; throughout the South Seas; 

 and the west coast of South and Central America. 



Family Chiroteuthidae: Subfamily Chiroteulhinae 



Chiroteuthis (,Chirothauma) imperator Chun, 1910 



Figure 30,a 

 Chiroteuthis (Chirothauma) imperator Chun, 1910, p. 240. — Sasaki, 1929, p. 305 



Material.— 1 cf, ML 164.0 mm., Sta. D5289, Matacot Pt., 

 southern Luzon in 315 m., broken shell and sand, July 22, 1908; USNM 

 574901. 1 cT, ML 160.0 mm., Sta. D5281, Malavatuan Id., southern 

 Luzon 368 m., July 18, 1908; USNM 574900. 1 cf , ML 144.0 mm., 

 1(?), ML 145.0 mm., Sta. D5280, off Malavatuan Id., southern 

 Luzon 353 m., July 17, 1908; USNM 574899. 2 99, ML 73.0, 101.0 

 mm., Sta. D5269 off Matacot Point, southern Luzon 403 m., June 8, 

 1908; USNM 574898. 1 9, ML 83.0 mm., Sta. D5388, off Bagatao 

 Id. between Burias and Luzon in 414 m.. Mar. 11, 1909; USNM 

 574903. 1 9, ML 60.0 mm., Sta. D5276, off Matacot Point, southern 

 Luzon 311 m., June 8, 1908; USNM 574897. 1 9, ML 75.0 mm., 

 Sta. D5216, Anima Sola Id. between Burias and Luzon in 393 m., 

 Apr. 22, 1908; USNM 574896. 



Description. — The mantle is thick, choroidal, and soft. Anteriorly 

 the margin is sharply produced in the dorsal section and emarginated 



