CEPHALOPODS OF THE PHILIPPINE ISLANDS 67 



described /. picteti from Amboina. In 1921, Berry described a new 

 species, I. notoides from Goolwa, southern Australia. 



In 1931, Grimpe described specimens of Idiosepius from the island 

 of Lombok, considering them as a subspecies, hebereri, of I. pygmaeus. 

 He reexamined Steenstrup's original specimens and also paradoxus 

 from Japan and concluded that pygmaeus is divisible into three sub- 

 species: I.p. hebereri in the south, I.p. pygmaeus, and I.p. paradoxus 

 in the north. The distinction between pygmaeus and hebereri is 

 very small: a slight difference in means and ranges of total and 

 mantle length, a thickening or callous on the dorsal edge of IV, and 

 in the disposition of the suckers of left IV, two in the dorsal row and 

 one in the ventral row, the opposite being true in typical pygmaeus. 

 Some of the other differences are not real. The smooth surface of 

 arms IV above the suckers as shown in Grimpe's figure is also found in 

 the present specimens when the rugae have been rubbed off. Cer- 

 tainly paradoxus is much closer to pygmaeus than the other nominal 

 species (picteti and notoides), but it is strictly a matter of opinion 

 whether paradoxus should be so placed. With our present knowledge 

 I prefer to keep it as a distinct species. Data concerning hebereri is 

 not clear enough to warrant an opinion at the present time. Con- 

 siderable variation is shown in the Philippine material, and the mean 

 size, especially of the males, varies considerably from area to area. 

 Presently available material indicates that pygmaeus may attain a 

 much larger size than either Grimpe or Steenstrup have shown. 



Distribution.— 4°20' N., 107°20' E.; Zamboanga (both Steen- 

 strup) ; Banda Sea (Appellof) ; Ternate (Appellof) ; Borneo and 

 Sumatra (Grimpe) ; Philippines! 



Order Teuthoidea: Suborder Myopsida 

 Family Loliginidae 



Loligo edulis Hoyle, 1885 



Figure ll,a-e 



Loligo edulis Hoyle, 1885, p. 186.— Sasaki, 1929, p. 107. 



Material.— 2 d'cf, ML 72.5-78.0, 2 99, ML 46.0-89.0 mm, Sta. 

 D5302, China Sea in vicinity of Hong Kong, 21°42' N., 114 50' E., 

 soft grey mud, 69 m., Aug. 9, 1908; USNM 575341. 1 9, ML 

 75.0 mm., 2 juv., ML 27.3-26.0 mm., Sta. D5304, China Sea in 

 vicmity of Hong Kong, 21°46' N., 114°47' E., blue mud, 62 m., sur- 

 face temp. 84° F, Aug. 9, 1908; USNM 575342. 4 cf cf, ML 32.0- 

 53.0 mm., 3 99, ML 42.0-64.0 mm., Sta. D5376 off Tayabas Id., 



