from the South-iocst Coast of Ireland. ;i79 



Dimensions. S . 



mm. 



Total leiij^th 582 



Eud of body to mantle-margin 103 



„ ,; eye Ill 



Breadth of body 70 



„ head '. 62 



Eye to edge of umbrella 102 



Diameter of largest sucker 4 



Length of arms * : — 



1st on right 471 mm. 1st on left 4G0 



2nd „ 440 „ 2nd „ nuitiliited. 



3rd „ 204 „ (hect.). 3rd „ ditto. 



4th „ 370 „ 4th „ 327 



Approximate number of suckers, 1st arm on right, 2o4. 



Dimensions. ? . 



mm. 



Total length 457 



End of body to mantle-margin 62 



» » eye 78 



Breadth of body 50 



Eye to edge of umbrella 105 



Diameter of largest suckei", nearly 4 



Length of arms : — 



1st on right 377 mm. 1st on left 379 



2nd „ 370 „ 2nd „ 371 



3rd „ 290 „ 3rd „ 312 



4th „ 238 „ 4th „ 290 



Approximate number of suckers, 1st arm on right, 218. 



Polyinis JVormani, sp. n. 



Head rather broader than body. Eyes large and prominent, 

 circumference of aperture in the type 11 mm. A number of 

 deej) wrinkles extend across the surface between eyes, 

 originating from dorsal side of eye-aperture. Surface other- 

 wise smooth in all parts. Arms 4-sided and keeled, some- 

 what slender, largest at the base, tapering gradually to very 

 iine j)oints, and arranged in the order 1, 2, 3, 4. Arms about 

 four times the length of body, the two dorsal pairs more bulky 

 than the rest. Suckers sessile, large, and with the arrange- 

 ment in the centre of arm noticed by M. Joubin in 0. levis'f. 

 Each sucker with circular aperture and numerous radial 



* The arms arc measured from the mouth. 



t " lOntre les ventouses, sur la face orale des bras, on voit uno croto 

 peu saillanto mais bien nette qui passe d'uno vontouse do droito a celle 

 iniiiitHliatement siiperiouro a gauche, puis de la revient ii droito et ainsi 

 do suite, L'ensenible do cotte disposition a Tiu^peot d'un hu-ot reliant 

 ;illrriiiilivenient deux raiigees de boutons." fanipagnes Scientitiquosdu 

 I'rinee do Monaco. Fa.-cioule xvii. (1900) : tV'phalopudi-s provcnant dcs 

 fiiinpiij-iii's lie la i'rinoesse Alice (1891-1897), par Louis Jnuljin. 



25* 



