254 TUDORA $. 3. 
neis obtusis spiralbus subdeeussata, fusco-albida, rufo seriatim 
punctata et 1—2 - fasciata; spira turrita, late truncata; sutura 
confertim. crenulata; anfr. superst. 4!/,—5 convexiusculi; aper- 
tura verticalis, oblique ovalis; perist. duplex:internum. expan- 
siusculum, album, externum album, luteum vel rufo-ignescens, 
dilatatum , rectangule patens , ad nd vb penultimum exci- 
sum, margine columellari sinuato- reflexo, auriculato. — Operc. 
praecedentis. .— —— Long. 18, diam. 8 mill. Ap. 6 mill. ne. 
(Coll. Nr. 182.) 
Cyclostoma Augustae Adams Contrib. to Conch. N. 1. p. 7. *) 
— — Chemn. ed. II. N. 311. t. 40. f. 34. 35. 
Tudora Augustae Pfr. Consp. N. 371. 
B. Testa aequaliter decussata, nitente, brunneo et albido variegata. 
Cyclostoma nitens Adams Contrib. to Conch. N. 1. p. 8. **) 
— Augustae var. Adams ibid. N. 9. p. 180. 
Habitat in insula Jamaica. 
Obs. Species praecedenti tam affinis, ut characteribus essentialibus 
vix distingui possit. Au ojus varietas? 
*) Shell much elongated, conie; shining, whitish or brownish, with six 
spiral series in three pairs of narrow dark brown spots which are either 
oblong or sagittate, the middle pair being more or less confluent, -—— with 
also a broad band and some more or less distinet lines of dark brown 
around the umbilical region; with transverse striae very strong on the upper 
whorls, and feeble and distant on the last whorl, decussated by faint spiral 
striae; spire with the outlines searcely convex; apex truncate with the loss 
of two or three whorls; five whorls remaining, with a moderately impressed 
suture, which is subcerenulate by the enlargement of the upper ends of the 
transverse lines in twos and threes; aperture ovate-orbicular, oblique; inner 
peritreme a little produced and reflected; outer peritreme well expanded, 
white, in some yellowish, more or less concave, much produced above and 
inflected forming a deep: pit, before the umbilieus refleeted far back into a 
deep sinus, with an alate expansion next to the sinus; umbilicus very small. 
Mean divergence 389; length 0,9; greatest breadth 0,52; least breadth -0,4 
inch. (Adams l. c.) 
**) Shell moderately elongated, conie; shining, browmnish white with 
white spots, and spiral interrupted bands. of pale brown, deep orange near 
the aperture; very finely decussate with nearly equal slightly elevated lines, 
but on the upper whorls the transverse lines are more prominent and the 
spiral lines obsolete; spire with the outlines slightly convex; apex truncate, 
with the loss of two or three whorls; four whorls remaining, with a well 
impressed suture; aperture large ovaté: -orbieular, moderately angulated above; 
inuer peritreme scarcely distinet , reflected upon the outer peritreme, which 
is reflected nearly into the plane of the aperture, is moderately spreading, 
sharp, thickened, narrower and bent back opposite the umbilicus, which is 
small. Mean divergence 40?; length 0,56; greatest breadth 0,36; least 
breadth 0,26 inch. (Adams l. c.) 
