HELIC1NA §.11. 
395 
126. II. aciitissima Sowerby. 689 
T. depresso - conica , solidula, oblique confertim striata, 
opaca, flava unicolor vel fasciis nonnullis rubris ornata; spira 
late conica, acuta; anfr. vix 5 plani, acute carinati, ultimus 
vix infra carinam descendens; apertura perobliqua, trapezia, 
intus concolor; columella brevis, dilatata, extus obsoletissime 
tuberculata; perist. expansum, latere dextro angulatum, mar- 
gine supero tenui, basali subincrassato ; callus basalis tenuis, 
diffusus. — Operc. testaceum, trapezium. — Diam. maj. 16, 
min. 14, alt. 8'/ 2 mill. (Coll. Nr. 69.) 
Hclicina arutissima Sow. in Proc. Zool. Soc. 1842. p. 6. * *) 
— — Sow. Thes. N. 48. p. 10. t. 2. f. 92—95. 
— — Reeve Conch, syst. II. t. 186. f. 2. 
— — Sow. Conch. Man. Ed. II. f. 532. 533. 
— — Chemn. ed. II. N. 76. p. 57. t. 2. f. 7 — 11. 
/?. Minor: diam. maj. 12, min. 10, alt. 7 mill. 
y. Minima: diam. maj. 9 '/a, min. 7, alt. 5% mill. 
Habitat in insulis Philippinis Bohol, Siquijor, Zebu (H. Cuming). 
127. HI* oxytropis Gray. 690 
T. depresso - turbinata , solida, carinata, rugoso - striatula, 
opaca, pallide flava; spira breviter conoidea, apice acutissima; 
sutura marginata; anfr. 5 r / 2 planiusculi, ultimus compresse et 
acute carinatus , basi convexiusculus ; apertura perobliqua, 
lunari-sub triangularis ; columella declivis, callum tenuem re- 
trorsum emittens, basi extus subangulata; perist. acutum, bre- 
viter expansiusculum. — Operc. tenue, testaceum, subtrape- 
zium. — Diam. maj. 12, min. 10, alt. 5 mill. (Mus. Cuming.) 
Helicina oxytropis Gray in Beech. Voy. Zool. p. 146. t. 38. f. 24. **) 
— oxy stoma Sow. Thes. N. 50. p. 10. t. 3. f. 139. ***) 
Habitat . . .? 
crassiusculo, irregulariter quadrilaterali ; epidermide aliquando per adhaesio- 
nem rupium fragmentorum in carinam latam praeruptam producta. — Alt 
0,45; long. 0,75 poll. (Sow. 1. c.) 
*) T. plus minusve depressa, concentrice leviter striata, angulari, acutis- 
sime carinata , infra angulos paululum complanata ; apertura triangular! ; 
labio interno tenuissimo ; columella subcomplanata , ad basim subundata ; 
labio externo acuto , valide reflexo , expanso , super angulum subdepresso. 
(Sow. 1. c.) 
**) T suborbiculari, depressiuscula, glabra, carinata, pallide flava; spira 
depresso-conica ; anfr. 4 acute carinatis ; apertura ampla , margine externo 
acute angulata, alba; callo columellari flavo. (Gray 1. c.) 
***) T. H. acutissimae simili, sed crassiori: labio interno valido. — * 
Bahia. (Sow. 1. c.) 
