2 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



The original description is based upon a specimen captured in the 

 Bay of Panama during the Dana Expedition (1920-1922). The pres- 

 ent material includes Dana specimens, one of which was taken at 

 the third station following the capture of Joubin's holotype. In 

 addition, material is utilized from the following sources: United States 

 Antarctic Research Program, USNS Eltanin; Inter- American Tropical 

 Tuna Commission, M/V Shoyo Maru; Woods Hole Oceanographic 

 Institute, R/V Chain; and University of Southern California, R/V 

 Velero iv. The authors are grateful to Dr. E. Bertelsen of the Carls- 

 burg Foundation, the U.S. Antarctic Research Program of the National 

 Science Foundation, Dr. Klawe of the Inter-American Tropical Tuna 

 Commission, Dr. R. H. Backus of Woods Hole Oceanographic Insti- 

 tute, and Mr. R. Lavenberg of the University of Southern California 

 for making these specimens available for study. 



We would like to thank Dr. Gilbert L. Voss for his interest and 

 encouragement during our studies and for his review of the man- 

 uscript. We also gratefully acknowledge Miss Constance Stolen for 

 her excellent preparation of the illustrations. 



Family Chiroteuthidae Gray 



Valbyteuthidae Joubin, 1931, p. 188. — Thiele, 1935, p. 971. 



Valbyteuthis Joubin 



Valbyteuthis Joubin, 1931, p. 188. — Thiele, 1935, p. 971. — Young and Roper, 



in press. 

 Chiroteuthis. — Robson, 1948, p. 127. 



Diagnosis. — A chiroteuthid with elongate ventral arms, oval 

 funnel-mantle locking apparatus. Antitragus present, tragus absent. 

 Short, compact tentacular club with suckers in four rows. Club 

 suckers on short stalks. Broad, round, subterminal fins; length 

 60 percent of width. Photophores absent. Funnel valve absent. 



The material examined is as follows : 



