L0LIGID2E : SEPIOLA. 
91 
with a hexagonal membrane, with a ridge running to the second, 
third, and fourth pairs of arms ; on the first pair it passes upon 
the web between the first pair of arms, where it bifurcates and 
runs on each side. 
Rossia Jacobi Ball , Trans. Roy. Irish Acad. 1843 ; Thompson's 
Report of Brit. Assoc. 1843, p. 248. ; D'Orb. Moll. Viv. et Fos . 
i. 259. n. 5. 
Hah. Ireland, Dublin Ray. Dr. A. Jacob, 1840. 
B. Head attached to the Bach of the Mantle by a broad cervical 
Band. Fin short , in the Middle of the Sides of the Bach. 
10. SEPIOLA. 
Body short, purse-like, rounded behind, truncated before. Cervical 
band broad. Mantle with an oblong ridge near the edge fitting 
into a groove on the sides of the base of the siphuncle. Fins 
on the middle of the sides of the back far apart, contracted 
at the base. — Head short. Eyes large, prominent; inferior 
eyelid distinct. Buccal membrane short, six- or seven-lobed. Ear 
simple, beneath and behind the eye. Aquiferous apertures two ; 
one brachial, between the third and fourth pairs of arms ; the 
second lacrymal, very small, above and behind the eye. Buccal 
apertures none. — Sessile arms conical, subulate, unequal ; cups 
spherical, longly pediceled ; rings horny oblique, convex ex- 
ternally ; third and fourth pairs slightly webbed at the base. 
Tentacular arms retracted into a suborbical cavity, elongate, 
and finned, with very many very small longly pediceled cups 
in eight series. — Siphuncle with an internal valve, and no cen- 
tral upper band at its junction with the head. — Shell horny, 
sublinear, narrow at the top, wider in front, and rather dilated 
behind, not more than half the length of the back, with a medial 
groove and thickened edges. 
Sepiola Rondelet. Piscis et Aquat. i. 510. 1554 ; Aldrovand. de 
Moll. cap. 5. 1606. 
Sepiola Leach , Zool. Misc. iii. 137. 1817, Journ. Phys. lxxxvi. 674. 
1817; Feruss. et D'Orb. Cephal. Acet. 1839; D' Orb. Moll. Viv. et 
Fos. i. 215. 1845 ; Risso , Fur. Merid . 1826 ; Blainv. Malac. 
1825; Grant , Trans. Zool. Soc. i. 1838; Owen , Trans. Zool. Soc. 
ii. 1838 ; Gervais et Van Beneden , Bidl. Acad. Brux. v. 1838, vi. 
38. 1839. 
Calmars sect. A. ou Sepioles Blainville . 
Sepia sp. Linn. Gmelin , Goldfuss. 
