20 CATALOGUE OF CEPHALOPODA. 



2. CISTOPUS. 



Body small, round, without any lateral fins. — Head in the di- 

 rection of the body. Eyes lateral, covered by the skin. Ex- 

 ternal ear indistinct. A small aquiferous system, consisting of a 

 bag with a small pore at the outer edge, situated between the 

 bases of the arms. — Arms unequal, elongate, united at the base 

 by a web wider beneath. Cups sessile, two-rowed, flat. — Si- 

 phuncle conical. — Living on rocky coasts. 



Octopus sp. Graij, B. M. ; Riipp. MSS. ; If Orb. Moll. Viv. et 

 Fos. i. 183., Cephal. Acet. 24. 



1. Cistopus Indicus. 



Body smooth, pouch-shaped, not bearded. Arms rather elongated, 

 unequal ; order of their length, 1, 2, 3, 4 ; web very broad. 

 Cups large ; two or three near the base of the dorsal pair of 

 arms largest. 



Octopus iudicus Riipp. MSS.; IP Orb. et Ferussac, Mon. des 

 Ceph. Acet. 24., Poulpes, t. 25, 26. f. 1—4. ; D'Orbigny, Moll. 

 Viv. et Fos.i. 183. n. 22." 



Hab. Island of Celebes. 



a. India. In spirits. Presented by General T. Ilardwicke. 



3. PINNOCTOPUS. 



Body oblong, with broad, lateral, wing-like expansions, which 

 extend in front, and enfold all the body. — Head indistinct, 

 narrower than the body. Eyes lateral, dorsal. — Arms very 

 long, with two rows of scarcely prominent cups, and with a 

 broad web at the base. 



Pinnoctopus D'Orb. Moll. Viv. et Fos. i. 193. t. 2. 

 Octopus sp. Quoy 8f Gaim. Voy. Astrol. 1832. 



1. Pinnoctopus cordiformis. 



Body orbicular, tubercular, winged. Arms long, nearly equal 

 length, the lateral ones shortest. Eyes rather prominent. — 

 Bed-brown, arms with pale-blue lunules. 



Octopus cordiformis Quoy Sf Gaim. Zool. du Voy. Astrol. ii. 27. 



t. 6. f. 2.; D'Orb. et Feruss. Mon. de Ceph. Acet. 62., Poulpes, 



t. 10. f. 1. 

 Pinnoctopus cordiformis D'Orb. Moll. Viv. et Fos. i. 193. t. 2. 



Hab. New Zealand. Only known from M. Quoy's figures. 



