354 HELICINA 8. 4. 5. 
citrina, interdum fusco-fasciata, vel omnino fusco-rubra, subtus 
convexa; spira anfr. 4 convexiusculis, ulümo ad peripheriam 
rotundato; sutura impressa; apertura lunata, lata; perist. 
simplex, acutum, ad basim obtuse angulatum; columella ex- 
pansa, callo copioso induta. — Lat. 3/4, alt. !/,9 poll. (G.) 
Helicina multicolor Gould in Proc. Bost. Soc. 1847. p. 202; Exped. 
shells p. 36. Ed. 1851. p. 100. f. 110. *) 
Habitat in insula Tongataboo. 
597a 341a. Hi. microdina Ylorelet. j- 
T. parvula, conica, transversim minute striata, spiraliter 
lirata, flava, sursum saturatior; anfr. 6 convexi, ultimus an- 
gulatus; columella arcuata, superne callosa, subdilatata; aper- 
tura obliqua, ovalis, margine simplice, recto. — Alt. 4, diam. 
4 mill. (Mor.) 
Helicina microdina Morelet 'Testac. noviss. II. p. 18. N. 124. 
Habitat vulgaris ;jn prov. Vera Paz Guatemalae. 
Obs. ,Primo aspectu f. rupestri Pfr. congruit, quamvis in univer- 
sum ab ea dissimilis.* 
$. 5. 
598 35. Hi. beryl!ina Gould. 
T. solidula, depresso-conica, infra convexa, ad periphe- 
riam obtuse angulata, polita, albido-virens; spira anfr. 5 pla- 
nulatis, ultimo cite crescente; sutura linearis; apertura magna, 
transverse semi-elliptica; perist. simplex; callus columellaris 
late expansus. — Lat. '/, alt. 3/, poll. (G.) 
Helicina beryllina Gould in Proc. Bost. Soc. 1847. p. 202; Exped. shells 
p. 37. Ed. 1851. p. 95. f. 111. **) 
Habitat in insulis Fecjee. 
599 36. KH. platychila I ühlfeldt. 
T. eonoideo-semiglobosa, opaca, subnitida, laevis, virenti- 
flava vel rubella; spira conica, mucronulata; sutura plana; 
*) A very delicate species, and one of the smallest known, and prin- 
cipally remarkable for its variable coloring. (Gould l. c.) 
**) Rather large as to size, and remarkable for its delicate beryl-green 
tint and polished surface. The outer whorl enlarges very rapidly. In form 
it resembles Z4. similis So. (Gould l. c ) 
