225 



ultimns ovatus, fasciis 2 snpra et infra lineam dorsalem ornatus; apert. verticalis, ovalis, in- 

 tus livido-albescens, fasciis insigne perlucentibns Perist. rectum, acntmn; margine dextro infrä 

 antice paulö producto; basali arcnato, vix effuso, colmnellari brevi, leviter arcuato, vis cras- 

 siusculo, vix prominente. — Long. 30, diam. 11 mill. Bat. anfr. (superst.) 3:1, apert. 2:1. — 

 üpolu: üafata et Apia. — Var. picea. Mouss. major. (33 alt., 12 diam.) crassior, picea, fasciis 

 modo in fance perspicnis, basi apert. latiori, margine minus cnrvato. — Upolu. (M.) 

 Essential Charakter the grooves upon the surface, distant, irregulär, deep, crossed by prononn- 

 ced lines of growth with minutely cancellated appearanoe ; the grooves cover the whole or ge- 

 nerally the lower portion of the whorls. — Colour olive-green, sometimes banded with dusky, 

 sometimes with longitudinal flammules, sometimes withont either. Whorls gracefnlly ronnded 

 orperfectly flattened and consequently angular around the last whorl; sntnre deep, broad, with 

 an abrupt ridge at the top of each whorl. Apical whorls donbtless folded, folds more or less 

 marked on the foUowing. (G.) 

 ' Lineis spiralibus perdistinctis, in anfractibus superioribus striis acutis decussatim sculpta ; fusco- 

 flavescens, fasciis 2 superis et 1 basali obscuris picta. — Upolu. — (M.) 



231. Melania lactuosa Hinds. 



Taf. 24, Fig. 9. 



T. siibulato-turrita , sat solida, unicolor fusco-olivacea. Spira subintegra, vel paulo 

 truncata; anfr. persist. 5 — 8 plani, subconcavi, stifurä distincte gradatä divisi, longitudina- 

 liter irregulariter et crebre sulcati, striis incrementi flexuosis, pliciformibus, subgranoso-decus- 

 sati; anfr. ultimus basi obtiise ancjulatus. Apertura subtrigona superne acuminata, siibcanali- 

 culata, basi late effusa; margine dextro recto, versus basin fiexuose producto, cum basali 

 subangulatim juncto; columella torta, parum arcuata. (Coli. mea). 

 Alt. 31, lat. 91/2; Apert. alt. 9V2, lat. 5 Mill. (anfr. 8). 

 Habit. I. Fidji. (Hinds, Graeffe); Upolu, Samoa (Graeffe). 



Melania luctuosa Hinds Ann. Mag. N. H. XIV. p. 9. 



* Voy. Sulphur. t. 15 f. 1. 

 Chenu 111 Conch. t. 2 f. 1. 

 Reev. Conch. Icon. f. 61. 

 H. A. Ad. Gen. of rec. Moll. 

 Mousson Journ. Conch. 1870 p. 211. 

 ** Melania Samoensis var. inserta Mousson Journ. Conch. 1869 p. 365. 



Gehäuse pfriera,epförmig-gethürmt, massig dickschalig, einfarbig bräunlich-olivenfarbig. 

 Gewinde gewöhnlich wenig decollirt; Umgänge 5 — 8 flach, selbst concav, unregel- 

 mässig und dicht) längsgefurcht, mit sehr sinuösen Apwachsstreifen , welche die Furchen 

 schneiden und dadurch eine grobe Körnelung der Oberfläche hervorbringen; der letzte 

 Umgang ist an der @asis stumpfkantig, Mmi4öffnung birnförmig, beinahe dreieckig, oben 



spitz, unten breit ergossen; äussere Lippe sinuös, in ihrer unteren Hälfte bogig vortre- 

 I. 24. 29 



