DORIS. 569 



slender, yellowish, oral veil semicircular. Branchial plumes 

 ten or eleven, simply pinnate, small, whitish, rather distant 

 from the vent, retractile within separate cavities. Eyes 

 conspicuous in the adult. 



Under three-eighths of an inch in length. 



Northumberland, Yorkshire, and Devon, under stones 

 near low water-mark (Alder) ; Sound of Skye (M 'Andrew 

 and E. F.). 



13. Doris inconspicua. Alder and Hancock. 

 Alder and Hancock, Monog. part 5, fam. 1, pi. 12, figs. .9-16. 



Body elliptic, depressed. Cloak dull white, speckled 

 with minute brown spots, covered with numerous nearly 

 equal, spiculose tubercles. Dorsal tentacles large, stout, 

 nearly linear. Oi'al veil slightly undulated, broad. Bran- 

 chial plumes ten, small and obtuse, dull white, forming 

 an incomplete circle at a little distance around the 

 anus. 



Half an inch in length. 



On CelUpora pumicosa from deep water, Northumberland 

 (Howse). 



14. D. pusiLLA, Alder and Hancock. 



Alder and Hancock in Annals Nat. Hist, vol. xvi. p. 313, and Monograph, 

 part 2, fam. 1, pi. 13. 



Body (only three lines in length) ovate, much depressed ; 

 cloak not ample, yellowish, with thickly set brown spots, 

 and covered with conical, obtuse tubercles, which are not 

 spiculose. Dorsal tentacles conical, long, and slender, 

 white, and sheathless. Oral veil, semicircular, broad, and 

 sinuous. Branchial plumes nine, short, broad, simply- 

 pinnate, white, surrounding a tuberculated space. 



This species, and its near ally depressa, are remarkable 



VOL. III. 4 D 



