CEPHALOPODS OF THE PHILIPPINE ISLANDS 81 



Measurements and indices of 10 males and 10 females of Sepioteuthis 

 lessoniana Lesson are: 



Discussion. — This is one of the most widely distributed loliginids 

 in the Indo-Pacific; it shows considerable variability, especially in 

 color, from area to area. Our specimens coincide well with those 

 described by Adam (1939a) and workers desiring information on 

 their morphology, sex differences and ratios, and variability should 

 consult this work. 



Distribution.— From the Japanese Islands to Australia and New 

 Zealand and from Hawaii to the eastern Indian Ocean. 



Doryteuthis singhalensis (Ortmann, 1891) 



Figures 14; 15,a 



Loligo singhalensis Ortmann, 1891, p. 676, pi. 46, fig. 3. 



Doryteuthis singhalensis, Naef, 1912, p. 742. — Adam, 1939a, p. 70; 1954, p. 144, 

 figs. 13-14. 



Material. — 1 cT, ML 162.0 mm., Balamban, Negros, sand in 22 

 m., April 2, 1908. 2 99, ML 132.0-133.0 mm., from Batangas 

 market, June 7, 1908. 1 cf, ML 84.0 mm., from Cebu, Aug. 30, 

 1909. 2 c? cf , ML 106-93.0 mm., Onol, Mindanao, Aug. 4, 1909. 



