T6 PROCEEDINGS OP THE ACADEMY OF [1880. 



dentium externorum sat applanatorum pneditis. Ingluvies buccalis 

 bulbo pharyngeo petiolo connata. 



Penis glande parva inermi. Vagina brevis. 



« 



The genus has been established by the author (1878) to receive 

 the D. proxima and its allies. The Adalarice externally approach 

 nearest to the Lamellidorides ; their branchial leaves are also dis- 

 posed mostly in horseshoe form, but fewer in number. The head and 

 the' tentacles are more as in the Aeanthodorides. The back is nearly 

 as in the Lamellidorides, but the granules are sometimes more pointed. 

 The opening for the rhinophoria as in the Lamellidorides, with plain 

 margin ; before them two to three tubercles, behind them the glabella. 

 The lip-disk only covered by a strong cuticula. The armature of the 

 tongue approaching to that of the Acanthodorides. The rhachis of the 

 tongue carries depressed small yellow plates ; at each side of these a 

 large hook-formed yellow plate, and further outwards a series of 

 smaller, nearly colorless plates, of which the inner ones are more 

 compressed, the rest depressed. The sucking-crop as in the Lamelli- 

 dorides, through a petiolus fixed to the bulbus. The salivary glands 

 as in the Lamellidorides. The oesophagus wider at its root. The 

 penis unarmed ; the vagina short. 



The Adalarice are Lamellidorides with a tongue resembling that of 

 the Acanthodorides ; they form a sort of connecting link between these 

 two groups. 



Of the typical species, the spawn is known (through Alder and 

 Hancock) and some few notices have been published about their 

 biology (through Meyer and Moebius) ; Sars mentions' the swimming 

 of Ad. Loveni. 



The genus seems to belong to the northern oceans ; only five species 

 .seem hitherto known. 



1. Ad. proxima (A. et H.). Oc. Atlanticus sept. 

 'Z. Ad. pacifica, Bgh., n. sp. Oc. Pacif. 

 ;J. Ad. virescens, Bgh., n. sp. Oc. Pacif. 



4. Ad. albopapi'losa (Dall). Oc. Pacif. 



5. Ad. Loveni (A. et H.). Oc. Atlant. sept. 



1. Adalaria proxima (Alder et Hancock;. PI. IX, fig. 12-15. 



Doris proxima, A. et H. Monogr. Part VI, 1854. Fam, 1, PI . 9, fig.«». 



10-1 G ; Part VII, 1855. PI. 46, suppl. f. 8. 

 Doris proxima, Meyer u. Moebius, Fauna der Kieler Bucht, I, 1865. 



P. 69-71 ; taf. V b, fig. 1-8. 



' Sars, Bidr. til Soedyrenes. Naturhist. 1829, p, 17. 



