196 COCKERELL AND COLLINGE I CHECK-LIST OF SLUGS. 



SUCCINEID^E, W. G. Binn. ? b. felina, Guppy. 



em Fischer. 624. O. guadeloupensis, Less. 

 OMALONYX, D'Orb. ? antillarum, Grat. 



Homalonyx, Agass., 1S47. 625. O. patera. Doring. 



Amphibulima, (pars) Beck, 626. O. gayana, D'Orb. 



l8 37- 627. O. convexa, Mart., 1868. 



Helisiga, (pars) Ffr., 1S55. ? Su b g . PELTA, Beck. 



623. O. unguis, Fer. 628. O. cumingi, Beck, 

 matheronii, Pot. & Mich. 



NOTES. 



1 c. It is a matter of opinion whether maculatus (I. each) or 

 krynickii should take priority. 



1 e. The form maculatus, Pic, is hardly distinct from punctatus, 

 Esiri. ; of course, Picard's name has priority, but it is not 

 the same as maculatus, Leach. 



i /. Moquin-Tandon is the author of this variety, strictly speaking. 



1 </. I have seen the type of megaspidus in the British Museum. 

 The external mouth-parts are those of maximus, not of 

 jlavus ; so also the reticulation, &c. 



1 r. strobeli, as I have identified it, is only a pale or semialbine 

 form of maximus. 



1 -'. subunicolor, Simroth I have seen no description of this. 



2-8. Subspecies or races not studied by me, and of quite minor 

 rank. 

 9. cinereo-niger. After all the discussion that has taken place, 

 I feel somewhat diffident about adding more. For my 

 own part, I have never been at a loss to identify cinereo- 

 niger by external marks, even when the sole has been 

 unicolorous. Yet it is only fair to state that an example 

 from Wales, which I was strongly persuaded was cinereo- 

 niger, though the sole was not banded, was at Leeds 

 referred to maximus?' Probably the specimens are still 

 preserved there, and if it is really maximus, I must retract 

 the above statement about the identification of cinereo-niger. 

 This slug was recorded by Mr. Fenn as cinereo-niger var. in 

 Journ. of Conch., 1887, p. 198 (see also p. 137). In the 

 British Museum there is a large cinereo-niger, entirely 

 white (var. albus, Paasch.). 7 



'•In all probability this was cinereo-uigcr. — W. E. C. 



7 It would be interesting to know in what manner the var. albus, Am Stein, of/., maximus, 

 L., differs from this var. albus of Paasch. — W.E.C. 



