Be 
distantibus (e. 12) substrietis vel leviter arcuatis, ver- 
ticalibus vel parum obliquis, superi integri v. transver- 
sim striatuli, medii liris spiralibus tenuibus tribus mu- 
niti; ultimi duo liris fortioribus 4—5 moniliforme no- 
dosi, raro ultimus dorso laevigatus; apertura subpiri- 
formis, basi acuminata, columella albo-coerulea. — Long. 
(anfr. 8) 22, diam. anfr. ult. 6; long. (anfr. 3 ultim.) 
14 mm, diam. anfr. ult. 6 mm. 
Japan, lacus Biva. 
Melania niponica E. Smith 
var. trachea n. 
Testa turrita, olivaceo-fusca ad nigra, nitidula, sed saepius 
limo obducta, spira in adultis saepius valde decollata; 
anfr. persist. 3—5, plano-convexi, ad basin subtruncati, 
sutura sat profunda disjuncti, omnes valide transversim 
costati (costis integris vel dense nodosis, plus minus 
forte extus arcuatis), lineis impressis spiralibus sat dis- 
tantibus exarati, interstitiis excavatis lineis densissimis 
spiralibus et striis incrementi creberrimis decussatis; 
anfr. ult. basi eingulis elevatis 6—8 ornatus; apert. 
anguste ovata, superne acuminata, basi rotundata. — 
Long. (anfr. 3) 20--22, diam. anfr. ult. 8-9 nm. 
: Ex. max. (anfr. 3) 1. 27, d. 13. ap. 13 mm. longa. 
Japan, lacus Hakone. 
Melania japonica Reeve 
var. ornata n. 
Testa ovato-turrita, solidula, olivaceo-flavescens, pellucida, 
oleoso-micans, fascıis obscuris, latiusculis, intus extus- 
que distinetissimis, in anfr. ultimo tribus, in caeteris 
duobus ornata; spira in adultis semper erosa, decol- 
lata; anfr. testae integrae 8, planulati, 3—4 superi 
transversim valde costati, caeteri omnes transversim 
densissime striatuli et ad basin testae spiraliter dense 
