SOWERBY : NEW SPECIES OF MARINE SHELLS. I i 



Lat. 12, alt. 7 millim. 

 Hah.—^. 



This species is somewhat like S. notata, A. Adams, but the shell is 

 more angular, with two keels more prominent than the remaining lirae. 



Spondylus oeeidens, n.sp. 



PI. V, fig. 9. ^ 



Testa suboblique ovata, crassa ; valva superiori planato-convexa, luteola- 

 aurantio-rufo sex-radiata, undique densissime Jadiatumlirata, liris brevis, 

 sime et densissime muricatis ; valva inferiori ventricosa, luteola, irre- 

 gulariter squamosa. 



Long. 60, lat. 49 millim. 



Hob. — Philippines (specimen unique). 



A remarkable species very densely imbricated, with minute scales, 

 and two or three rows of somewhat larger ones. It is conspicuously 

 co.oured with six orange-red rays. 



Spondylus reesianus, n.sp. 



PI. V, fig. 6. J 



Testa suborbicularis, depressiuscula, aurantiaca, ferrugineo-fusco prope 

 umbonem variegata ; undique multilirata, liris tenuissimis, densissime 

 rregulariter aculeatim spinosis, liris principalibus 6, paulo magis elevatis, 

 squamis erectis elongatis hie illic trifurcatim ramosis munitis ; valva 

 superiori planulata, inferiori convexiuscula. 



Long. 55, lat. 53 millim. 



Hah. — Moluccas (specimen unique). 



This charming shell from the collection of the late Admiral van 

 Rees, is most profusely imbricated with numerous rows of thin spines of 

 unequal length, some of the principal ridges bearing long flattened three- 

 forked scales. 



DESCRIPTION OF PLATE V. 



Figs. 1, •*. Nassa optima, n.sp. 



Fig. .1. Purpura eudeli, n.sp . 



Fig. 4. Stomatella ccqiiisifa, n.sp. 



Fig. 5. Conns boabt'eae, n.sp. 



Fig, 6. Spondi/lus reesianus, n.sp. 



Fig. 7. Voluta planicostala, n.sp. 



Fig. S. Voluta dohrni, n.si). 



Fig. 9. Spondylus oeeidens, n.sp. 



Fio-. 10. Lntirus sinr/ularis, n.sp. 



