SEPIA. 241 



S. bisserialis, Do Montfort. 



Animal pale above, clouded with red ; bone elliptical, lanceo- 

 late, tinged with red. 



Plate PPP, fig. 2. 



Sepia bisserialis, Denis de Montfokt (fide Verany). — Verany, Moll. Med. 

 vol. i. p. 75, pi. 26. 

 „ ehijans, Ferussac and D'Orbigny, Hist. Ceph. Acet. p. 280. Seiches pi. 

 8, fig. 1—5, and 27, fig. 3— 6.— D'Orbigny, Moll. Viv. et 

 Foss. p. 285, pi. 12, f. 6,8. 

 , rupellaria, Ferussac and D'Orbigny, Hist. Ceph. Acet. p. 274, Seiches, 

 pi. 3, f. 10— 13.— Ball, Proc. Royal Irish Acad. vol. ii. p. 

 192. 

 „ rubens, Philippi, En. Moll. Sicil. vol. i. p. 203. 



„ Orbignyana, Ferussac, Hist. Ceph. Acet. Seiches, p. 273, pt. 5, pi. 27, 

 f. 1—2?— D'Orbigny, Moll. Viv. et Foss. p. 275, pi. 

 3—4? 



Of this very distinct cuttle-fish, the bones only have as 

 yet been met with in the British seas, three specimens 

 having been found at Magilligan, in the North of Ireland, 

 by Mr. Hyndman, and one on the Northumberland coast, 

 by Mr. Alder. They are of an ovate lanceolate shape, 

 narrowed below, in detail of parts resembling the common 

 cuttle-bone, but strikingly different in outline. The British 

 specimens vary somewhat in width. They are tinged with 

 delicate rose-colour. Mr. Alder has compared his with 

 specimens of the true bisserialis bone received from Ve- 

 rany, and finds an agreement in every essential particular. 

 He remarks, that " the foreign examples are a little smaller, 

 and rather narrower, but the largest of them approaches 

 very nearly to my specimen, much more so than Verany's 

 figure. ,, The Sepia rupellaria of Ferussac was founded on 

 a bone taken on the Atlantic coast of France, and appears 

 to be only this species deprived of its lateral membrane. 

 Sepia Orbignyana is surely one of the sexes of the same. 



VOL. IV. I I 



