of British Mollu&ca. 473 



Off Little Cumbrae, Firth of Clyde, 50 fathoms {A. M. N.) ; 

 mouth of Loch Fyne, 48 fathoms, and West of Scotland 

 {Hoyle). 



Mr. Hoyle and myself have examined together the British 

 and Mediterranean specimens of this genus (including 8. Ron- 

 deletii and S. Petersi of the Mediterranean) which are in our 

 two collections, and I only give those localities from which 

 we have determined specimens. It must for the present 

 remain in doubt whether the true 8. Rondeletii, which is 

 characterized by an auriculate or trilobed ink-sac, by fins 

 equalling more than half (about three fifths) of mantle, and 

 by having all the suckers of the arms two-rowed, occurs on 

 our coast. Giard records it from Roscoff. 



Distribution. Roscoff {Giard), Denmark, Sweden, South 

 and West Norway, and Faroe {8teenstrup and Posselt). 



8. Sepiola atlantica, d'Orbigny. 



Sepiola atlantica, d'Orbigny, Cepb. Acet. p. 235, Sepioles, pi. iv. figs. 1- 

 12 ; Forbes and Hauley, Brit. Moll. iv. p. 217, pi. MMM. fig. 2 ; 

 Steenstrup, Notae " Teuthologicae, 6,'' Overs. Kongl. Danske Vidensk. 

 Selsk. Forb. 1887, p. 65 ; Hoyle, Fauna of Liverpool Bay, 1886, 

 p. 279; Giard, Ann. & Mag. 'Nat. Hist. ser. 6, iv. (188!)), p. 182; 

 Posselt, in Petersen, Vidensk. Udbytte af ' Haucbs ' Togter, 1889, 

 p. 141. 



Fins equal to more than half (about three fifths) the length 

 of the mantle. Suckers of the arms two-rowed, but the 

 fourth (ventral) arms having the suckers near their tips sud- 

 denly becoming many-rowed, very minute, and crowded in 

 both sexes. Funnel furnished with a valve, which in the 

 male is very much smaller than in the female. Ink-bag tri- 

 lobed or auriculate. Gladius lanceolate or cultriform. . In 

 the male the suckers of the arms are fewer and larger than in 

 the other sex. One of the first arms is largely developed, 

 swollen, and widened laterally, with a hollow about the middle 

 of its length. The third arms of male in this and other 

 species of the genus are strongly forced down upon the oral 

 opening. 



Bantry and Jersey (A. M. N.) } Plymouth {Zool. Lab.\) y 

 North Wales {Hoyle). 



Distribution. Roscoff and Pas de Calais {Giard), Kattegat, 

 South Sweden, South and West Norway, and Faroe {8teen- 

 strup and Posselt). 



Jeffreys united this species with the last as being its male ! 



