Boone, Mollusca, Cruises of "Ara" and "Alva" 331 



raiso, Chile, February 4, 1935, by the "Alva" South American 

 Cruise, 1935. 



Discussion : This rather rare Loligo was previously reported 

 in the Vanderbilt collections, from fifty miles southwest of Cape 

 Mala, Panama, from surface to 300 fathoms dredge haul, also 

 from Punta Arenas, Costa Rica, in a 100 fathom haul, and is fully 

 described and figured in Bulletin IV, p. 180, plate 112. 



The present Panama City specimen, which has both tentacular 

 arms broken off, agrees with the preceding description in other 

 essentials, except that the suckers of the sessile arms are curiously 

 almost entirely devoid of the usual horny rings. The few suckers 

 which do have horny rings show the dentition characteristic of 

 Loligo diomedeae. The difference existing is too trivial to merit 

 attention. The present writer has not infrequently noted similar 

 variation in the dentition of the sucker rings of the better known 

 east coast species, Loligo pealeii (Leseuer) . 



The Chilean specimen, which is typical diomedeae, is of excep- 

 tional interest, since it is the first record of the species so far south. 

 The previous records included the Gulf of California and Panamic 

 province. The dentition of a large sucker from the third right 

 sessile arm and from a large sucker of the left tentacular arm 

 are shown in text figure 18. 



References: Loligo diomedeae, Hoyle, W. E., Bull. Mus. Comp. 

 Zool., 1904, vol. LXIII, p. 29, pi. 5, fig. 13, pi. 6, figs. 1-7.— 

 Boone, L., Bull. Vanderbilt Marine Mus., 1933, vol. IV, p. 180, 

 pi. 112 (with complete discussion). 



Loligo indica Pfeffer 



■f 



Plate 142 



Type : Pf effer's type was collected in Java and is deposited in 

 the Hamburg Zoological Museum. 



Material examined: Nine specimens, taken with marine 

 light, Cebu, Island of Cebu, Philippine Islands, January 18, 1929, 

 by the "Ara." 



