Punctum, ix. 
minutissimum, ix. 
pygmaeum, ix., 7. 
Puncturella, xxiii. 
noachina, xxiii. 
Pupa, xi. 
pirvithag 15. 
edentula, 1 
marginsta, v4. 
muscorum, 14, 
var. bigranata, 14. 
pygmaea, 15, 
pusilla, 15. 
secale, 14. 
umbilicata, 14. 
Pupids, xi., 13. 
Purpura, 36. 
lapillus, 36. 
Purpurida, 36. 
Pyramidellide, xx., 52. 
Pyramidula, ix. 
rotundata, ix., 8. 
rupestris, ix., Va 
R. 
Rachiglossa, xiv. 
Retusa, xii. 
hyalina, 28. 
mammnillata, xii. 
nitidula, xii. 
obtusa, xii., 28. 
truncatula, xii., 28. 
var. pellucida, 28. 
umbilicata, xii 
Rhipidoglossa, 56. 
Rissoa. 
anatina, 46. 
crenulata, 43. 
labiosa, 44. 
rubra, 46. 
var. unifasciata, 46. 
rufilabrum, 44. 
ulve, 46. 
10 
~ 
Rissoia, xviii., 42. 
cancellata, 43. 
cingillus, 45. 
var. rupestris, 45. 
costata, 43. 
costulata, 44. 
fulgida, 45. 
var. pallida, 45. 
inconspicua, 43. 
membranacea, 44, 
var. minor, 44 
parva, 43. 
semistriata, 45. 
striata, 44. 
striatula, 42. 
subcylindricata, 45. 
ventricosa, XVill. 
violacea, 44, 
Rissoiide, xviii. 
Rossia, vii. 
glaucopis, vii. 
macrosoma, vii. 
Oweni, vii. 
Roxania, xii. 
utriculus, xii. 
Runcina, xiii., 31. 
coronata, 31. 
Hancocki, xiii., 31. 
Runcinide, xiii., 31. 
8. 
Saxicava, xxxi. 
rugosa, 90. 
Saxicavide, xxxi., 90. 
Scala, xx. 
clathratula, 51. 
clathrus, xx. 
communis, 51. 
Turtonis, 51. 
Scalide, xx., 51. 
Scaphander, xii., 29. 
lignarius, xii., "29. 
Scaphandride, xii., 29. 
Scaphopoda, xxv. 
Scissurella, xxii. 
costata, xxii. 
crispata, xxii. 
