CEPHALOPODS OF THE PHILIPPINE ISLANDS 49 



Euprymna albatrossae Voss, 1962 



Figures 6,c,d; 7,b,c 

 Euprymna albatrossae Voss, 1962, p. 171. 



HoLOTYPE. — 1 cT, ML 24.0 mm., from Cubagao Anchorage, 

 Catanduanes Id., off southeast coast of Luzon, June 9, 1909; electric 

 light; USNM 575331. 



Paratypes.— 2 (f cf, ML 22.0-20.5 mm., 3 99 ML 20.0, 15.0, and 

 12.5 mm., from Cubagao Anchorage, Catanduanes Id., off southeast 

 coast of Luzon, June 9, 1909; electric light; USNM 575332. 



Description. — The mantle is saccular, bluntly rounded posteriorly, 

 and joined to the head dorsally by a broad nuchal commissure. The 

 lateral margins nearly cover the eyes and ventrally it is produced, 

 leaving only the tip of the funnel exposed. The ventral margin is 

 sinuous. 



The fins are large, nearly two-thirds the length of the mantle and 

 united to the body a little in front of the middle of the mantle. They 

 are subcircular with broad strong bases and auriculate anteriorly 

 with a broad free anterior lobe. 



The funnel is stout, tubular with a narrow aperture, and free for 

 over half of its length. The funnel adductors are strongly developed. 

 The funnel organ is clearly seen, the dorsal member stout and V- 

 shaped, the surface heavily wrinkled. The ventral pads are also 

 wi'inlded, stout, pointed anteriorly. The valve is triangular. 



The head is large, as wide as the mantle. The eyes are prominent, 

 with small eyelids, and there is a large pore posterior to and slightly 

 ventral of the pupil. The head is flattened and grooved ventrally 

 for the funnel. 



The arms are in the order 2.3.4.1 or 2.3.4=1, about as long as the 

 mantle and rather stout, strongly keeled for most of their length. In 

 the females, the suckers are nearly equal in size between the outer 

 and inner rows and all the arms are the same (Sis 2.5-3.3). In the 

 males, I right has three pairs of suckers basally, followed by about 

 three sets of four suckers. Beyond this the suckers of the inner rows 

 are small with round apertures, but about eight of the median suckers 

 of the outer rows are greatly enlarged, about 3 to 4 times as wide as 

 those of the inner rows, the suckers of the dorsal and ventral rows equal. 

 The apertures of all the enlarged suckers on all the arms are smooth 

 but in two sections, a broad straight 'lower lip" and an arched upper 

 border, the union between the two incomplete. Distally, the suckers 

 abruptly decrease in size. On II, the suckers of the inner rows are 

 small, but those of the outer rows are greatly enlarged (in the holo- 

 type about the first 14 in each outer row are enlarged, the others 

 decreasing in size somewhat abruptly). On III, there are a few^basal 



