UELIX §53. 263 



nigruin, subincrassatum , parum expansum. — R. a. = 4 : 7. — 

 Ofam. maj. 37, min. 30, alt. 21 mill. (Mus. Cuming.) 

 Helix filaris Val. Mus. Paris. (teste Cum.) 



— — Pfr. in Proc. Zool. Soc. 1845. p. 38. 



^. Minor, apice nigricante, sutura rufa: diam. maj. 33, min. 27, alt, 

 19 mill. (3Ius. Cuming.) 



Habitat in insula Marinduque Philippinarum (Cuming). 



Obs. 1. Intermedia interH. Valencienncsii et virginem, a priore spira ele- 

 vata et anfractu ultimo obtuse angulato, J)asi non inflalo, ab altera spira majore, 

 columella magis obliqua et perist. incrassalo , nigro diversa. 



Obs. 2. H. conformis Fer. ex icone speciebus praecedentibus affinis vide- 

 tur, tamen ex descriptione alio loco inserenda. (Conf. Nr. 777.) 



6SS. H. Sircna Beck. 



T. imperforata, globoso-depressa, diaphana, spirahter minu- 

 tissime et confertissime striata, paHidc viridis aut straminea, 

 fasciis rufis et saturate viridibus ornata ; spira parum elevata ; su- 

 tura levis; anfr. 4 convexiusculi, uliimus ad peripheriam interdum 

 subangulatus, albido-cingulatus, antice subito deflexus; columella 

 brevis, arcuata, macula fusca circumdata; apertura kmato-eHiptica, 

 intus fasciata ; perist. simplex , late expansum , nigricans , mar- 

 ginibus conniventibus. — R. a. = 8 : 15. — Diam. maj. 24. min. 

 18%, alt. 1 5 72 mill. ( Cbll. Nr. 4 1 . ) 

 Helix Sirena Beck in sched. Cuming. 



— — Pfr. Symb. II. p. 39. ' 



— — Chemn. ed. II. Helix N. 309. t. 53. f. 14 — 17. 



ft. Major, subcarinata, subtus unicoior, perist. albo: diam. maj. 26, 



mln. 20y2, alt. My. mill. (Spec.) 

 Helix Sirena Phil. Icon. I. 4. p. 78. Helix t. 4. f. 6. 

 y. Unicolor straminea, fascia pallidiore supra carinam obtusam: dimcns. 



sicut var. /5. (Spec.) 



Habitat in insula Panay Philippinarum (Cuming.) 



01)s. Huic similes sunt varielates nonnullae ecarinalae H. Hiigeii Pfr. 

 (Conf. Nr. 785.) 



* 

 689. H. Petitiana Orbigny. f 



T, imperforata, subdepressa, ovata, crassa, exilissime trans- 

 versaliter et longitudinaliter striata; spira brevis, obtusissima; 

 anfr. 4; apertura lata; labrum marginc incrassalum, reflexum; 

 columella complanata. — Diam. 67, alt. 27 mill. (0.) — Diam. 

 maj. 67, min. 48, alt. 31 mill. (ex ic.) 



Helix Petitiana Orb. moll. cub. I, p. 144. t. 9. f. 1—3. 

 llabitat in insula Cuba: Jagua. 



Obs. <'SimiIisH. auricomae Fer, , magniludine et pcrislomale reflcxo di- 

 slinguenda. » 



