CEPHALOPODA OF THE HAWAIIAN ISLANDS. 
3II 
Type. — Sepia Loligo Lum 4 1758. As in the case of Polypus, Schneider mentions no type or other 
species, but the clear inference is that Sepia loligo Linne was what he had in mind, a conclusion sup- 
ported by the fact that this was the only species of true Loligo which was at that time possessed of a 
binomial name. Because of the great uncertainty attaching to Linne 's species, Hoyle considers L. 
vulgaris Lamarck 1798 to be the type of Schneider’s genus as it is that of Lamarck. 
[Loligo gahi d’Orbigny 1835 ] 
Loligo gahi d’Orbigny 1835. p. 60, pf. 3, fig. 1-2. 
LoUqo Gahi Tryoa 1879, p. 144. 
Tryon gives us an alleged record of this species from the Hawaiian Islands in the following words: 
“ Specimens in Mus. Phila. Acad., said to come from the Sandwich Islands, agree well in the dentition 
of the rings with this species. ’ ’ As this is a characteristic Peruvian and Chilean species there is no ddubt 
that the citation is an error. 
Strangely enough the above is the only record I have been able to find of the presence of any member 
of the cosmopolitan genus Loligo in Hawaiian waters, and I am unable even with the aid of the large 
collection now in hand to affirm its occurrence there. 
Family SEPIOLID.® Keferstein 1866. 
Steenstrup i86i {fide Hoyle). 
Keferstein 1866, p. 1443. 
SepiolidcB Verrill i88r, p. 347, 416. 
Sepiolidce Joubin 1902, p. 80, etc. 
Sepiolidce Pfefifer 1908, p. 24, 31. 
Sepiolidce Naef 1912, p. 243, 244. 
Body short, thick, rounded posteriorly. Fins large, separate, ovate or roimded, attached laterally 
near the middle of the body. Eyes with a thickened ventral fold or false lid, and sometimes a dorsal 
fold as well. Median septum of mantle cavity reenforced by a pallial retractor muscle joining the 
mantle to the body. Internal shell a very rudimentary uncalcified gladius, often entirely absent. 
Eggs large and few. A photogenic gland is often present in the pallial cavity overlying the ink sac; 
from it a luminescent secretion is emitted. 
Subfamily SEPIOLIN2E Naef 1912. 
Sepiolini Appellof 1898. p. 623. 
Sepiolince Naef 1912, p. 246, 247. • 
Mantle margin united with head in nuchal region by a band-like commissure. Left dorsal arm 
hectocotylized . Photogenic glands often absent; when present of elongate form, well separated, and 
more or less lateral in position. 
Genus EUPRYMNA Steenstrup 1887 . 
Euprymna Steenstrup 1887. p. 66. 
Euprymna Steenstrup 1887a, p. 88-90 ^42-44). 
Euprymna Hoyle 1904, p. 24. 
Euprymna Wiilker 1910, p. 9, 26, etc. 
Euprymna Naef 1912, p. 247. 
Suckers of sessile arms in four rows, except at tip and extreme base; on tentacle club long 
stalked, very minute, urceolate, and in very numerous (more than i6) rows. Nuchal commissure over 
one-third as broad as the body. Left dorsal arm of male hectocotylized, the distal suckers closely 
palisaded together and of very characteristic structxne; the remaining arms differ from those of the 
female in the possession of certain peculiarly enlarged suckers. Large elongate photogenic glands 
present. Gladius wanting. 
Type. — Inioteuthis Morsei Verrill i88i (species first mentioned), a common Japanese species. 
