1G5 



9. Chiloii Swainsoni G. B. Sowerb^. 



Ch. tcsta oblongo-ovali, dorso elevatiusculo, castanea, 

 albido lineata; valvis rotimdatis; valva antica, area postica 

 valvae posticae et areis lateralibus valvarum intermediarum 

 leviter radiato-granulosis; areis medianis valvarum inter- 

 niediarum longitudinaliter sulcatis. 



Long. 1| poU., lat. 1 poll. 



Colore similis ch. lineolato Frembl., discrepans scul- 

 ptiira. — Ligamentum marginis coriaceum. 



Reperit IL Cuming cum mytilis L. et pectinibus Brug. 

 ad oi'as Peruvianas (Iquiqui and Callao). 



Proceedings. 1832. p. 27. 



10. Chiton crenulatus TP*. J. Broderijj. 



Ch. testa oblonga, albido-rosea, lineis nigro- viridibus 

 subconcentricis varia; valva antica subgranoso-radiata, po- 

 stica retusa, caeteris granoso subconcentrice Ilneatis, medio 

 externe carinatis, interne nigro-rubris; areis lateralibus gra- 

 noso-biradiatis. 



Long, 1-^ polL, lat. 1 poU. 



Ligamentum marginis coriaceum. 



Legit II. Cuming ad oras Panamae iu America meri- 

 dionali. 



Proceedings. 1832. p. 27. 



11. Chiton setosus G. B. Hoicerhy. 



Ch. testa oblongo-ovali, cinereo-virescente, scabrosa; 

 valva antica^ arcis lateralibus valvarum interniediarum et 

 valva postica radiatim sulcatis; setis marginis breviusculis, 

 confcrtis. 



Long. Ij^o^ poll., lat. f poU. 



Similis ch. lanigero King. (zool. journ. V. p. 338.), 

 dislincta tamcn species. — Ligamentum marginis selosuui. 



Legit H. Cuming ad oras Americac centralis ((iua- 

 comayo). 



Proceedings. 18-32. p. 27. 



12. Chiton Fremhleii IP. ./. Broderqt. 



Ch. testa oblonga, complanala, olivaceo-fusca, liaeis 



