octopid^e : OCTOPUS. 



Octopus unicirrhus Belle Chiaje, UOrb. et Feruss. Mem. des Ceph. 

 Acet. 73. 



Hab. Atlantic Ocean, Mediterranean, Indian Ocean, Red Sea. 



a. Yarmouth. Adult. In spirits. 



j"| Body smooth, not bearded. 



2. Octopus .ZEgina. 



Body oblong, elongated, smooth, marbled, not bearded. Nape, 

 eyes, and back of head smooth. Eyes very prominent. Arms 

 rather elongate; proportionate length, 4, 3, 2, 1. Web short, 

 rather wider below, smooth above. Cups rather large and 

 rather far apart, equal ; the five or six lower ones far apart, and 

 in a single series. 



Hab. . 



a. ? In spirits . 



3. Octopus aranea. 



Body oblong, short, smooth. Head short, narrow, very smooth; ocu- 

 lar beards one, posterior. Arms much elongated, smooth, slender 

 very unequal ; order of their length, 4, 3, 2, 1. Cups small, close, 

 numerous; about 180 on the longest arms; the four nearest the 

 mouth in a single line. Web short. — In spirit blackish, colouring 

 dots very small. 



Octopus aranea D' Orb. Poulpes, t. 5. 1825 ; D'Orb. et Feruss. Mem. 

 des Ceph. Acet. 57., Poulpes, t. 5. ; D'Orb. Moll. Viv. et Fos. i. 

 184. p. 23. 



Octopus filamentosus JBlaiuv. Diet, des Sc. Nat. xliii. 188. 1826. 



Hab. Isle of France. 



fft Back slightly granular. 



4. Octopus Gertonea. 



Body (in spirits) marbled, smooth. Head and base of the arms very 

 minutely granular. Eyes with one fleshy tubercle, and one 



. behind the eye; upper eyelid rugose. Arms moderate, very 

 thick at the base ; proportionate length, 3, 4, 2, 1. Web broad, 

 upper surface finely granulated. Cups large, subequal ; the three 

 or four lowest rather distant, and one-rowed. 



Hab. Coast of Brazils. 



a. Bahia. In spirits. 



B 4 



