246 



ENDEAVOUR SCIENTIFIC RESULTS. 



membrane bordering the sucker-bearing area ; suckers bowl- 

 shaped, numerous, in four rows, those of the two medina 

 series on the expanded portion of the club half again as large 

 as the corresponding suckers of the marginal series ; suckers 

 numbering about 12 in each series before the narrow distal 

 part (the latter comprising less than one-third the length of 

 the club) is reached, where those in all four series become 

 very minute, those of the ventral series slightly the largest, 

 the others diminishing shghtly in size both distally and 

 toward the dorsal margin ; number of suckers in each row 

 on this distal part of club about 25. Homy rings of larger 

 central suckers of club armed (Figs. 31-32) with 21-26 acute 

 well-separated, conical teeth, largest on the upper margin, 



f'ig. 35. — Loligo etheridgei ^ [490], two ventral la])pets of right side of 

 buccal membrane of paratype ; camera diawing from a mount in balsam. 



but continuing around the entire circumference, the large and 

 small teeth as a rule in regular alternation. One of the 

 largest of these suckers has a maximum diameter of 2.88 mm. 

 Horny rings of the larger marginal suckers (Fig. 33) with 

 19-22 acute, incurved teeth, smaller on the lower margin, 

 but not clearly in alternating sizes. One of these marginal 

 suckers measures 1.92 mm. 



Buccal membrane 7-pointed, each point bearing from 4 

 to 7 minute, biserially arranged suckers (Fig. 35), their 

 horny rings toothed along the upper margin with about 8 

 square-pointed teeth. The largest of the suckers shown in 

 the drawing has a maximum diameter of exactly .5 mm. 



