382 Mr. T. D. A. Cockerell'.s Notes on Shiga. 



with Fdrussac's figure. This slug is cylindrical, curved, and 

 narroio (in alcohol) ; sole narrow ; ground-colour and colour 

 of sole pale yellow, back thickly marbled with brown-grey, 

 and with tioo longitudinal series of dark egg-shaped spots. 

 Jaw bright-coloured, not ribbed. (Description from Brit. 

 Mus. specimens.) 



Dr. Gray (Brit. Mus. Cat.) also describes L. caroUnensis. 



Limacella nebulosa. 



? Emneliis nehulo^us, Raf. Ann. of Nat. 1820. 



Tebennophorus caroUnensis, liinney, Terr. Moll. U. S. vol. ii. p. 20. 



This and the last have hitherto been included together 

 under the one name caroUnensis, and it is not without mis- 

 givings that I venture to separate them here *. Yet, from the 

 specimens which I have examined, there would certainly 

 seem to be a specific distinction between the northern and 

 southern forms referred to caroUnensis in the Eastern United 

 States and Canada. The British Museum contains specimens 

 of nebulosa as follows : — 



(1) From Mr. W. G. Binncy, labelled T. caroUnensis. — 



Ochreous, marbled with black above, the marblings 

 rather inclined to be in three longitudinal series. 

 Sole unicolorous. 



(2) W. Canada {Dr. Maclagan). — Pale yellow, marbled 

 above with brownish grey, the markings being a 

 broadish dorsal and narrower lateral brownish-grey 

 bands, with irregular spots over the rest, except sides 

 near foot. Sole unicoloi-ous. 



(3) Amhurstburgh, Canada West {J)r. 0. W. Maclagan). 



— Like the last, but mottling grey and more diffuse; 

 two narrow dorsal and narrowish lateral bands, rather 

 obscurely indicated in grey. Grey mottling thicker. 

 Ground-colour pale yellowish. 



Comparing caroUnensis with nehulosa, we note : — 



(rt) The Virginia caroUnensis. — Sole narrow, yellowish, 

 pale, without transverse strife; body smoothish. 



(/>) nehulosa, no. 1 above. — Sole broad, brown, with strong 

 transverse stria? ; body rugose. 



* Mr. W. G. Biuney AViites {in lift. Sept. 9, 1S5K)) :— '• I am rather 

 sceptical about there being two species .... as you say . . . . — there is 

 ii big species ol" TeheyinopJinnts confounded with caroli)u'nsi}i, but hfl\ ing a 

 ribbed jaw." 



