— 75 - 



Obs. Specics nitore eximio, sculpturao absentia, et areis latcrallbus 

 obsoictis, facillime distinguenda, tanquam pictura et colore 

 variabills. 



6. Chiton (Lophurus) geiunmlatus ShuUl. n. sp. 



Testa parva, oblongo-ovata, olivaceo- vel caernlescenti-viridis, 

 dorsa late purpureo, interdum albido maculato^ valvis terminallbus 

 pustulls mag,nis rotundis nitidis pulcherrime ornatis^ mediis vix 

 obtuse carinatis : areis dorsalibus medio laevibus ad latera trans- 

 verse flexuoso-costnlatis, areis lateralibus elevatis pustulis conspi- 

 cuis .subrotundis in seriebus 3 ad 4 radiatim liratis. Limbus rubro, 

 Viridi et albido maculatus, squamis roagnis margaritaceis nitidissi- 

 mis eximie tessellatus. 



Long. lOj Lat. 6 millem. 

 Hab. St. Thomas, Blauner! rarissime. 

 Obs. Specimina 3 speciei pulcherrimae accepi, cum nulla mihi nota 



oomparanda. Color variabilis sed semper externe plus minusve 



intense purpureus, interne pallide viridis, centro rubescens. 



I. Chiton [Ischnochiton] purpurasccns C. B. Adams. 



„Testa praelonga, purpureo-rubente, concentrice striata; roar- 



gine (limbo) lato, exilissime squamuloso, carulescente, alternatim 



paliidiore." Adams. 



Long. 29', Lat. 10 millem. (in exempl. meis). 

 Syn. Chilon purpuroscens C. B. Adams Proc. Best. Soc. 



1845. p. 9. 

 „ sanguineus Reeve I. c. sp. 98. tab. 17. f. 98.(184'?) 



Hab. India Occ. , Cuming!^ Jamaica, C. B. Adams 3 Portorico, 

 Blauner! 3 St. Vincent, Guilding fide Reeve. 



Obs. Rarius occurrere videtur ex speciminibus tantum 3 a Blan- 

 nero lectis. Species pulchra facile distinguenda, forma angusta 

 valde elongata, sculptura eximia in areis centralibus et latera- 

 libus continua, et praesertim limbo squamulis exilissimis oculo 

 nudo vix distinguendis quasi furfuracco. 



8. Chiton [Ischnochiton] lateritius ShutU. n. sp. 



Testa elliptice oblonga, convexa, lateritia, albido sparse macu- 

 lata; valvis terminalibus subconcentrice lineatis punctatisqoe; me- 

 diis non carinatis: areis dorsalibus medio irregulariter foveolato- 

 impressis ad latera transverse costulato-subsulcatisj areis lateralibus 

 subelevatis radiatim subsulcatis et minute punctatim foveolatis. Lim- 

 bus ruber concolor, sqamulis minutis applanatis dense obsitus. 



Long. 12; Lat. 6 millem. 



