24 BULLETIN OF THE 
Genital system complicated with accessory organs in the form of vaginal 
prostates, one long, narrow, flagellate, tapering at apex, four short, cylindri- 
cal, bluntly terminating. Genital bladder very large, oval, on a narrow duct. 
Penis sac stout, tapering above into a flagellate extension, at the commence- 
ment of which the vas deferens enters. 
Jaw low, wide, ends attenuated, blunt: over twelve flat, broad, crowded ribs, 
whose ends denticulate either margin. 
Lingual membrane with 40-1-40 teeth. Centrals tricuspid ; laterals bicus- 
pid; marginals also bicuspid without the inner cutting point being bifid. 
Turricula terrestris, Cuemn. 
Tachea hortensis, MULL. 
Pomatia aspersa, MU xt. 
Also, San José, Cal. 
Besides the above, that have more or less firmly established themselves here, 
various species have from time to time been noticed living, but the individual 
or colony has died out. Some of these are : — 
Zonites cultellatus . .. . . . . See Vol. V. p. 135 
sarin itt | Urea he ey wees & 35 
Stenoreyravoctolay-)s-) nee n-ne ns =< LOG 
Bulimulus) Obscurus) <0. =) na Sele 
Pupaimareitatas00) (sees eeeee < 213 
Melixisdepictaw 2.00, 6) samen 26 
Pisana’.. is! Ji): eee See se £53956 
arbustorum:: a 2). ee ec cc 6256 
lactears, suc? see ee sé 257 
variabilis 015), SIRS Oia Ma eC O57 
Bulimussacutuse mc o.cs Cenc ee f «399 
Succineasputnis... =.) ee ae “430 
ampbhibiay 3:5 Gagne acne 2 “430 
UNIVERSALLY DISTRIBUTED SPECIES. 
For all of these see Vol. V. 
Patula striatella, AnrHony. Zonites arboreus, Say. 
Microphysa pygmea, Drarp.* indentatus, Say.t 
Helicodiscus lineatus, Say. minusculus, BInn. 
Vallonia pulchella, Mix. viridulus, MxKe. 
Pupa muscorum, Lin. milium, Morse. 
Zonites nitidus, Miu. fulvus, Drap. 
* See below, page 35. 
t See Supplement I. for Zonites subrupicola. 
