224 Zoological Society. 
24. Heticina san@uinea, Pfr. Hel. testd conoideo-orbiculata, 
crassa, punctato-striatuld, opacd, sanguined ; spird brevi, conoided, 
acutiusculd ; anfractibus 44 planis, ultimo utrinque conveviusculo, 
medio subangulato ; aperturd obliqud, subtriangulari, altiore quam 
latdé; columella basi antrorsum dentatd, cailum tenuem, semicir- 
cularem retrorsum emittente; peristomate recto, intus sublabiaio, 
margine basali strictiusculo. 
Diam. 101, altit. 6 mill. 
© 
Locality unknown. 
95. Hexicina (TROCHATELLA) SEMILIRATA, Pfr. Hel. testd conico- 
globosd, solidd, opacd, flavidd, superne confertim albo-liratd ; spird 
conicd, aculiusculd ; anfractibus 53 planiusculis, ultimo convexius- 
culo, carinato, basi subtilissimé concentrice striato ; aperturd perob- 
liqud, subtriangulari ; columella simplice, immediate in marginem 
basalem abiente ; peristomate incrassato, angulatim expanso, mar- 
ginibus callo tenuissimo junctis, supero sinuato. 
Diam. 103, altit. 75 mill. 
From Venezuela (Linden). 
26. Hexicina Sowersiana, Pfr. Hel. testd depresse trochiformi, 
tenuiusculd, lineis impressis spiraliter sulcatd, alba ; spird conicd, 
acutiusculd ; anfractibus 6 planiusculis, ultimo subcarinato, basi 
convexiusculo ; aperturd parum obliqud, subtriangulari ; columella 
tenui, basi nodiferd; peristomate simplice, angulatim expanso, 
margine supero sinuato ; callo basali tenuissimo. 
Diam. 21, altit. 14 mill. 
From Guatimala (De Lattre). 
27. Hevicina TenurLasris, Pfr. Hel. testd subglobosd, solidius- 
culd, sublevigatd, albo et cinnamomeo variegatd et subfasciatd ; 
spird breviter conoided, acutiusculd ; anfractibus fere 5 planius- 
culis, ultimo utrinque convexo, antice vie descendente ; aperturd 
obliqud, semiovali, intus cerasind, pallido-fasciatd ; columella re- 
cedente, angustd, retrorsum in callum tenuem dilatatd, basi imme- 
diate in peristoma tenue, expansiusculum, abiente. 
Diam. 10, altit. 7 mill. 
Locality unknown. 
28. Hexicina tenuis, Pfr. Hel. testa turbinatd, tenuissimd, vix 
striatuld, pellucidd, corneo-albida, rubro obsolete trifasciatd ; spird 
conicd, acutd ; anfractibus 6 vix convexiusculis, ultimo basi plani- 
usculo ; aperturd fere verticali, triangulari-semiovali ; columelld 
brevi, basi retrorsum subdentatd, superne in callum nitidum, cir- 
cumscriptum, dilatatd ; peristomate tenui, angulatim expanso, mar- 
gine basali cum columelle basi angulum formante. 
Diam. 11, altit. 83 mill. 
From Yucatan. 
29. Henicina unipentata, Pfr. Hel. testd depressd, tenuiusculd, 
liris concentricis alternatim validis, obtusis et minoribus cinctd, 
diaphand, nitiduld, rubella; spird vix elevatd ; anfractibus 44 
depressis, ultimo antice descendente, basi medio profunde excavato ; 
apertura perobliqud, late lunari; columella simplice, retrorsum in 
