Dentition of Pulmonata. 



Amelia from Los Ancles. His species had about 48 teeth 

 "row, 16 being laterals, the balance marginals, a de- 

 ference of arrangement which may fairly be considered to 

 show a specific difference between his specimens and the ban 

 ^lelco form, though his discovery leads us to consider 

 Amalia as native to California. 



Limax maximus, Linn. 

 I have also reexamined the lingual of this species from 

 specimens collected in Newport, E. I. (see my edition of 

 Gould's Invevtebrata of Mass., p. 407, fig. 669) and find , 

 to Z ee with the descriptions and figures of Lehman,, and 

 Hevnemann. I am preparing an exhaust.ve paper on the 

 Ution-of our land she,,*, in which more P—^ 

 scriptions of the dentition of all our speo.es w,ll be given 

 will here say, however, that in the specimen examined by 

 me the bifurcation of the marginals commences uea i the 

 median line than is described by Heynemann. Theie aie 

 Tut twelve marginals without bifurcation in my specimen, 

 at he bifurcation eomn.ences at about the thirt.eth tooth 

 m the central line. Heynemann gives the commeneemen 

 of the bifurcation at the sixty-fifth tooth. There are 76-1-76 



teeth. . n , 



Limax campestris, Bmney. 



To complete the series of North American Limaces, I 

 • s ubjoi„ a summary of the characters of this «£<**<»*£* 

 one now known to be native to eastern North Amenc*. 

 There are 36-1-36 teeth, 11 being perfect ^e^, am 25 

 bein« marginals. Of the latter about one-half are bifid. 

 Thc°ec„trals and laterals are of the same type as in L. 



"Tudti'n, from dentition alone, L. maximus and fiavUs 

 wou ,dV p.aced in He.nemannia , a subgenus of J»»; 

 agrestis in s. g. Agriolimax; campers in s^ g. MaUnh 

 max.; while Ilewstoni would be in the genus Amaha. (See 

 Heynemann, Nachr. Mai. Gescll., H, 163.) 



