ONYCHOTEUTHID2E : OMMASTREPHES. 
61 
rhomboidal, acute. Sessile arms, cups oblique, equal- sized ; 
rings with acute teeth on the higher side, and smooth on the 
lower one. Tentacular arms naked one third their length ; 
cups iu two series, then in four ; the eighteenth or twentieth 
central cup of the upper part very large, lateral one very small, 
longly peduncled and very oblique, the tip compressed, with 
a narrow triangular patch of a few small cups in three or four 
series at the base, and two series at the end. 
Pernetti , Hist. Voy. aux Malouines , ii. 76. ? 1770. 
Sepia tunicata JVIolina , Hist . Nat. du Chili , 173.? 1789; Gmelin , 
Syst. Nat. edit. 13. 3151 . sp. 8. ? ; Shaw> Nat. MS. x. iv. t, 546. ? 
from Montfort, Sonnini. 
Sepia nigra Hose , Hist. Nat. des Vers , i. 47. ? 1802. 
Calmar reticule Montfort , Huff, de Sonnin. Moll. ii. 96. t. 21. ? 
Ommastrephes gigas I)' Orb. Voy. Am. Merid. Moll . 50. t. 4, 
18 35. 
Ommastrephes giganteus U Orb. Ceph. Acet. t. 1. f. 11 — 13. rings, 
1839, Paleont. univ. t. 23. f. 1 — -4., Paleont. etrang . t. 20. f, 
1—4., Moll. Viv. et Fos. i. 425. t. 30. f. 1—4. 
a. Valparaiso. Young ? In spirits. Mr. Bridges’s Col- 
lection. 
b. Shell of a. 
5. Ommastrephes Sloanii. 
Body cylindrical, rather tapering behind. Fin rhombic, rather more 
than one third the length of the body. Sessile arms compressed ; 
cups equal, oblique, in two rows ; rings black, higher side with 
regular acute teeth, lower smooth ; third pair acutely finned, 
with a narrow rayed membrane on the inner edge of the ventral 
side. Tentacular arms slightly keeled externally, base half- 
naked ; cups of lower part small, in two rows, of middle four 
rows ; the seventh pair of the central series largest ; rings 
with distant teeth all round ; of the lateral series small, longly 
peduncled, and very oblique; of the apical portion small, in 
three or four rows, the smallest one nearly sessile. 
Hob. Indian Ocean. 
a. New Zealand, Waitemata. Small. In spirits. Presented 
by A. Sinclair, M. D. 
b. ? Var. ? In spirits, adult. Mus. Sloane. Fin nearly half 
the length of the body. 
Cycria Leach , MS. 1817. 
c. ? Shell of b. broken, dry ; taken out by Dr. Leach, 
