SEPIOLIDA. oT 
with a brilliant nacreous layer. So indestructible is this fossil 
ink that it is yet capable of use as Sepia. It is difficult to 
understand how it was preserved, as the recent calamaries spill 
their ink on the slightest alarm. 
Beroteutuis, Munster, 1843. 
Etym.—Belos,a dart,and teuthis. Syn.—Sepiolites, Munster. 
Distr.—B. subcostata, Miinst. (xxviii, 58). Upper Lias of 
Wurtemburg. 
Gladius. Shaft lozenge-shaped, pointed at each end, with 
posterior lateral wings. 
PaytioreutTuis, Meek and Hayden, 1860. 
Distr.—P. subovata, M.and H. (xxviii,59). Upper Cretaceous, 
Dakota. 
Gladius thin, subovate, slightly concave below, and convex 
above. From behind the middle it narrows towards the front, 
the outline of the lateral margins being convex, while the 
posterior end is more or less obtusely angular. 
This genus is founded on the impression of the expanded 
part of a gladius in a mass of rock; it was evidently thin, and 
as no part of its substance remains, is supposed to have been 
corneous. It looks very like Beloteuthis. 
PriLoTeUTHIS, Gabb, 1869. 
Distr.—P. foliatus, Gabb (xxviii, 60). Cretaceous, California. 
Gladius elongate, subovate, very thin, anterior end broadly 
angulated, no midrib; surface marked by numerous, irregular, 
small wrinkles, which radiate backwards and outwards, partly 
from the anterior end, and partly from an imaginary median line. 
[ScaprorrRuyncuus, Bellardi. | 
Founded on decapod beaks discovered in the tertiary of 
Piedmont. S. mzocenicus, Bellardi (xxviii .75-17). 
Famity SEPIOLID 4. 
Sepiota, Leach, 1817. 
Syn.—Sepioloidea, d’Orb, 1839. Fidenas, Gray, 1849. 
Distr.—T sp. European Seas, Japan, Mauritius, Viti Is., 
Australia, Singapore, Coast of Maine, U. 8. 
Body short, purse-like, mantle united to the head cervically, 
and ventrally supported by a ridge fitting a groove on the funnel; 
arms with two or eight rows of pedunculated suckers, the rings 
of which are not toothed, and eight rows of very small ones on 
the tentacular clubs. Fins oval, dorsal. Gladius lancet-form, 
only half as long as the body, margins thickened. First left 
arm hectocotylized. 
