I 



PULMONATA. loj 



Synopsis of Genera. 



1. Philomycus. Body convex. — American. 



2. Meghimatium. Body depressed.— Asiatic. 



1. PHILOMYCUS. 



Animal convex, rather compressed, tapering and acute behind. 

 N. America. 



Philomycus, Rafinesque, Annal. Nat. 10, 1820. 

 F&ussac, Tab. Syst. 9. 96»». 96^, 1821. 

 Philippi, H. C. 239. 

 Gray. P. Z. S. 1847, 1/0. n. 434. 

 ? Eumelus, Rajin. Annal. Nat. 10, 1820. 



Ferussac, Tab. Syst. 9. 96'«. 96y, 1821. 

 Limax, § C (PhUomique), Blainv. Man. Malac. 464, 1825. 

 ? Limax, § D (Eumele), Blainv. Man. Malac. 464, 1825. 

 ? Veronicella, part. (Eumele), Gray, P. Z. S. 1847, 178. n.488. 

 Limacellus (lactescens), Blainv. Journ. Phys. 181/, 442. t. 11. 

 f. 5 ; non Ferussac, Tab. Syst. 10. 16. 96 ». 96 ^ ; Hist. Moll. ii. 

 52 (not Brard). 



Gray, Fig. Moll. iv. 

 Limacella, Blainv. Man. Malac. 463 (not Turton). 

 Tebenophonis (carolinensis), Binney, Boston Journ. Nat. Hist. 

 1841-51, iv. 163. 



Wyman, Boston J. N. H. iv. 411. 



The Philomyci have an elongated tapering form ; the head 

 with two long and two short tentacles; the surface somewhat 

 granular or regularly wrinkled ; the back is entirely enveloped 

 with a shield-like mantle ; in the front part of the right side is a 

 notch or opening into the respiratory cavity ; the si^ace of the 

 shield is smooth, neither granulated uor folded. 



" Back with a large cavity occupying the whole extent of the 

 dorsal and lateral regions." — Wyman. 



Mouth as in the genera himax and Helix. The tongue is co- 

 vered with an immense number of minute teeth, arranged in a 

 transverse-linear series, and having a form more or less conical. 

 Those on the median line (fig- 4 a) are readily distinguished from 

 the lateral teeth by their symmetrical form, and by being smaller 

 than those nearest to them on either side. The lateral teeth 

 (fig. 4 b. b. 8c c. e.) are all more or less inclined towai'ds the 

 axis of the tongue. Those near the median line have an ob- 

 tusely conical form, and at the apex are surmounted by a sharper 

 conical point. As they recede from the centre this point dis- 



