1912.] NATURAL SCIENCES OF PHILADELPHIA. 395 



mm. 



Total length 203 



Length of body (dorsal) 42 



Width of body 35 



Width of neck 20 



Width of head 21 



Length of funnel 20 



Length of right dorsal arm (inside measurement) 134 



Length of left dorsal arm (inside measurement) 130 



Length of right second arm (inside measurement) 85+ 



Length of left second arm (inside measurement) 142 



Length of right third arm (inside measurement) 120 



Length of left third arm (inside measurement) 121 + 



Length of right ventral arm (inside measurement) 125 



Length of left ventral arm (inside measurement) 120+ 



Length of hectocotylus 7 



Length of umbrella between dorsal arms 28 



Length of umbrella between ventral arms * 24 



Dimensions of ocular spot of right side 7 x 12 



Ortmann separates his P. brocki from P. areolatus on account of 

 (1) the larger ocular spots; (2) the nearly smooth skin; (3) the unusual 

 enlargement of the suckers, and (4) the presence of a brown spot 

 between the eyes. Wulker considers part of these characters due 

 to the preservation and suggests that the remainder are equally 

 applicable to P. areolatus. The present specimens bear out this 

 opinion very fairly. 



Distribution. — Aomori, Mutsu (!); Tsuruga, Echizen (!); Tokio 

 (!); 100 meters off Misaki, Sagami (Wulker); 110 meters off Dzushi, 

 Sagami (Wulker); Bay of Waka, Kii (!); Kagoshima, Satsuma 

 (Ortmann). Hong Kong (Hoyle); south of Papua (Hoyle). 



Material Examined. — 



No. Where Author's 



Sp. Locality. Sex. Collectors. deposited. Register. 



2 Aomori, Mutsu d" Jordan and L.S.J.U., 329 



Snyder Cat. 2,013 



1 Tsuruga, Echizen c? Jordan and L.S.J. U., 148 



Snyder Cat, 2,014 



1 Tokio cf Jordan and L.S.J.U., 347 



Snyder Cat, 2,015 



1 Bay of Waka, Kii 9 Jordan and L.S.J.U., 330 



Snyder Cat. 2,017 



A specimen entered as L. S. J. U., Cat, 2,018 (S. S. B. No. 332], 

 collected by Jordan and Snyder at Tsuruga, Echizen, is not only 

 much larger than any of the specimens above referred to P. areolatus, 



