VUl 



SYSTEMATIC INDEX. 



Pl^ANORIilS. 



2. albus ... p. 18, pi. Ill, f. .30, 31 



3. Isevis 37, 38, .'59 



4. imbricatus... p. 19, f. 40, 41, 42 

 Section 2. — Volutions carinated. 



5. carinatus ... p. 20, f. 34, 3.5, 36 



6. marginatus 26, 27, 28, 29 



7. vortex p. 22, f. 32, 33 



8. spirorbis p. 23, f. 19, 20 



Section 3 Shell shining, trans- 

 lucent ; spire deeply umhilicate ; 

 volutions provided with a slight 

 carina. 



9. nitidus ... p. 23, pi. IV, f. 1, 2 

 Section 4 Destitute of a carina ; 



volutions rounded both before and 

 behind, and deeply umbilicated. 

 10. contortus... p.24,pl.ni, f.24,25 



Genus 9. 



Segmentina Fleming. 



1. lineata p. 2.5, pi. IV, f, 3, 4 



Family IV Colimacea. 



Section 1. — Animals with two ten- 



tacula. 



Genus 10.^ 



Cyclostoma Lamarck. 



1. elegans... p. 26, pi. IV, f. 10, 11 



2. marmorea p. 27, f. 13, 13 



Genus 11. 



Carychium Miiller. 



1, minimum... p. 28, pi. IV, f, 8, 9 



Genus 12. 

 Acme. — Hartmann. 



1, fusca p. 28, pi. IV, f. 15 



2. minuta p. 29, f. 16 



Sectio7i 2. — Animals with four ten- 



tacula. 



Genus 13. 



SucciNEA Drapernaud. 



1. amphibia... p. 30, pi. IV, f. 20, 21 



2. gracilis 22. 23, 26, 27 



3. oblonga p. 31, f. 19 



Genus 14. 



AcHATiNA Lamarck. 



1. acicula... p. 32, pi. IV, f. 28, 29 



Genus 15. 

 BuLiML'S Lamarck. 



1. obscurus... p. 33, pi. IV, f. 24, 24* 



2. montanus p. 34, f. 17 



3. lubricus f. 12 



4. acutus p. 35, f. 31, .32 



Genus 16. 



Bal^a. — Gray. 



1. fragilis p. 36, pi. IV, f. 30 



Genus 17. 



Clausilia Drapernaud. 



Section 1 Shell smooth; the clau- 



sium or shelly plate with a notch 

 at top, fitting into a plait situate 

 on the outer lip of the aperture. 



1. bidens ... p. 38, pi. IV, f. .33, 34 

 Section 2 Shells corrugated, and 



with the clausium entire at top. 



2. biplicata p. 39, f. 35, 36 



3. rugosa p. 40, f. 37, 38 



4. Rolphii p. 41 f. 39, 40 



5. dubia 41, 42 



Genus 18. 

 Pupa. — Lamarck. 



1. muscorum p. 42, pi. V, f. 1 



2. unidentata p. 43, f. 2 



3. bidentata 3 



4. niarginata p. 44, f. 4, 5 



5. umbilicata p. 45, f. 6 



6. Anglica p. 46, f. 7, 8 



7. juniperi p. 47, f. 9 



Genus 19. 



Vertigo Miiller. 



Section 1. — Shells dextral, nearly 

 cylindrical ; aperture externally 

 margined. 



1. edentula p. 48, pi. V, f. 10 



2. Pygmaa 11 



3. cylindrica p. 49, f. 12 



