405 
Var. y. PLATYOMPHALA. 
YT’. leviuscula, liris distantibus obsoletissime granulatis. 
Diam. 5 mm., long. 18 em. 
Operculum cylindricum, apice late (casu?) truncato, gyris 10; 
area centralis lata planiuscula, umbilico fundo plano et obliquo, 
segmentis radiantibus, sulcis intermediis rectis, canali periphe- 
rico profunde impresso; lamina marginali angusta bipartita 
annulo interno castaneo, margine externo flavescente. 
Diam. 32mm., alt. 3 mm. 
Hab. Ins. Philippin., legit H. Cuming. 
The operculum most like that of var. 3; but the umbilicus is not 
deep, and has a flat bottom. The sculpture of the shell appears very 
different, but the size of the granulation varies much in the same in- 
dividual. In case the difference of the operculum (as in Serpula) 
should prove specific, I have named the variety with reference to the 
umbilicus of the lid. 
Var. 0. LUMBRICALIS, Rumph. t. 41. f. N1? 
T. crassa, lirulis compressiusculis, granulis obliteratis. 
Long. 22 cm., diam. 5 m. 
‘Hab. Ins. Philippin. (coll. H. Cumingii). Specimina 3. 
One of the specimens has a spiral impression under the porous 
slit. 
Var. €. LEVI-LIRATA. 
YT. gracilis, liris angustissimis levigatis, ports rotundis distanti- 
bus rarius confluentibus, rima aperturam versus simplice. Color 
albus sordide flavescens. 
Long. 17 cm., diam. aperturee 5 mm. 
Hab. Singapuhra (coll. Cumingii). Specimen unicum. 
This variety seems a good species if the smooth lire prove con- 
stant; but the preceding is exceedingly like it. 
Var. . JAPONICA. 
T. gracilis, crassa, liris angustis leviusculis approximatis, in 
anfr. primis divaricatis (an morbo?). Rima in anfr. ultimis 
simplici ; poris approximatis rotundis fere confluentibus. Color 
albus inferne fascia ferruginea lata irregulari. 
Long. 18 em., ap. diam. 43 mm. 
Hab. Japan (coll. Cumingii). Not unlike Rumph. t. 41. f. N 1. 
5. Trnaconvs (Siz1euartus) Tostus, n.sp., Mérch. 
T. tenuiuscula, spira turbiniformis, liris disjunctis angustis le- 
viusculis obsoletissime undulato-granulatis, granulis distantibus. 
Rima utrinque linea undulata marginata, poris immersis ellip- 
ticis subregulariter distantibus. Color albus ; anfr. ultimi 
inferne pallide ferruginei, anfr. 4 et 5 saturate castanei. 
Long. cire. 12 cm., apert. diam. 5 mm. 
Siliquaria anguina, Chenu, pl. 1. f. Y, non absimilis. 
Hab. Ins. Ceylon (£. L. Layard), specimen unicum. 
