4432 Mollusks. 



other u signs of the times" that its days are already numbered — this, 

 and other species at present accounted local, will probably be 

 stripped of that character, and invested with one of greater dignity 

 and importance. 



Doris clepressa. This species, it is stated in the Monograph, 

 is " generally found adhering to a species of Lepralia, incrusting the 

 under surface of stones in pools near low-water mark, and so nearly 

 resembles the zoophyte in colour as' not to be detected without the 

 closest inspection, in support of which statement the discovery 

 at Burghead of one individual in 1853, and another in September fol- 

 lowing, both in the precise situation above described, is now gladly 

 adduced. It may further be remarked of this and the preceding spe- 

 cies, though the remark is by no means confined to them, that 

 the most thorough accordance was found to exist between the charac- 

 ter of the Burghead individuals and that of the species as described 

 and figured in the Monograph, attesting alike the accuracy of that 

 work, and the permanent character of these species under the modi- 

 fied circumstances necessarily attending so wide a difference of 

 locality. 



Doris pilosa, (D. nigricans, Flem.) Not rare among the rocks at 

 Burghead. It has been met with above half-tide level, but more fre- 

 quently in the border land between the littoral and laminarian zones 

 already described. In evidence of its " Protean character" (Mon. 

 Nudib. Moll.), it has been found here in all its known varieties, — 

 white, black, light yellow, and tawny. 



Goniodoris nodosa, (D. nodosa, Flem.) Common at Burghead be- 

 tween tide-marks. The variations mentioned in the Monograph as 

 having been made by some naturalists the ground of specific distinc- 

 tions have been observed here, but, considerable though they cer- 

 tainly are, they do not seem to merit the importance thus attached to 

 them. 



Triopa claviger. Of this fine species only three individuals have 

 been found at Burghead; one in June, 1853, and two in the following 

 September. It must therefore be considered rare, at least between 

 tide-marks, where the above specimens were found at extreme 

 low- water. 



JRgiris punctilucens. Not uncommon at Burghead among the 

 rocks, and most frequent in the vicinity of low-water mark. It has 

 generally been found in small hollows, on the under surface of stones. 

 Somewhat difficult to detect on account of its prevailing tint, and to 

 the naked eye peculiarly uninviting, at least in the rather stunted 



