ROPODA 



; Long \\ (station [29), from .1 d< pth of 



which -.■ ongl) distorted bj being i ohol 



1 purple colour, and had a tive length • 



mon append th< frontal veil were reduced to two not very distinctly separ- 



papillse, and 011I3 the lateral ends of the veil ; 1 strongly and in a 



was ao t ut t at t!u base "t' the --i ni]>l > fingered sheaths of the rhinophores; the 

 the smallei one 3 pairs of branchial tufts. 



2. Dendron. arborescens (O Fr. Miller). 



die Nudibranchien des Willem Barents . I.e. [885 p. 25 33. Tat II, 



Figs. 1 j 28. 



As \\ til i» .nal specimens were fished of this species, that is distributed 



in the eastern and western parts of the Atlantic, from the Polar sea to the baj ol Biscay, and 

 ■ mud in the Pacific 



On 66°35' LatN., 55 -\ Long. W. (station 31) 2 specimens wen- obtained from a depth of 88 

 le of wich had a lengtb of 1 . by a height of i\v"\ and a breadth of 07 ; in the 

 pecimeu the corresponding measures were 2 — 0-5 — 0-45"". The frontal veil had in the former 

 men (2 appendages, in the latter 8; the former had 8, the latter 5 pairs of branchiae. 



< hi ... 54 17' Long.W. (station 34) three individuals were taken from a depth 1 



in length 2*4 2-2 — 1-3 ; they had all six pairs of branchial tufts. 

 On 65 34' LatN., 54 31' Long. W. (station 34), on a depth of 68 faths. (temp, o 21 was finally 

 specimens. One of them was 2"" long; the other (the frontal veil of which was quite 

 bitten away, and the bulbus pharyngeus laid hare and projecting) measured only r4 cn >; the former had 

 1 the frontal veil and 7 pairs of branchial tufts, the other only 6. 

 All these 17) individuals were of a yellowish white colour. By mv earlier examinations I have 

 id, in [3 out of 28 individuals, 8 appendages on the frontal veil, and I never found more than 10 

 appi one of the 7 here examined had 12 such. The number of branchial tufts in the earlier 



mens was generally 6, and did not exceed 7; in one of those here examined. 8 tufts 

 ind on each side. The anal papilla was in these, as in the earlier examined specimens, alv. 

 situat I and the second branchial tuft 



lam. Aeolidiadae. 



Subfam. Coryphellidae. 



K. B n d. nudibranch. Gasteropoden. 1892. p. 1027 1029. 



not perfoliated) rhinophores {Himatella only forming an 

 •11 in thi ula has three series of tOOth-plates, and the lateral teeth are dellti- 



ithout armature. 



