58 



lique longitudinaliter granuloso-striatis ; valves Ztiee, Atee, btee, 

 6teeet 7mee medio longitudinaliter bisulcatd: long. 1 T V, lat. -Jvpoll. 

 Hab. in Insula S li Laurentii in Sinu Callao, Peruviae. 

 This species resembles Chit, crenulatus, but may be distinguished 

 by attention to the above characters. 



Two specimens only were found on shells in seven fathoms water. 

 -G.B.S. 



Chiton Chiloensis. Chit, testd oblongd, leevi, coloribus luridis 

 varid; valvd anticd, valvarum intermediarum areis lateralibus et 

 valvee posticee ared posticd radiatim punctato-striatis ; valvarum 

 intermediarum areis centralibus et valvee posticee ared anticd lon- 

 gitudinaliter punctato-striatis : valvis sex posticis prope medium 

 longitudinaliter sulcatis : long. 2 T V> lat. 1 T 8 U poll. 



Hab. sub lapidibus ad littora Insulae Chiloe. 



Somewhat similar to, but very distinct from Chit.Chilensis, Frembl. 

 -G. B. S. 



Chiton roseus. Chit, testd ovato-oblongd, leevi, rosed; dorso ro- 

 tundato ; valvd anticd, et valvarum intermediarum areis lateralibus 

 longitudinaliter, areis centralibus transversim sulcatis ; valvee pos- 

 ticee vertice centrali, sulcis concentricis : long, -^y, lat. tV poll. 



Hab. ad Insulam Platse, Columbian occidentalis. 



Found on dead shells in seventeen fathoms water. — G. B. S. 



** Ligamento marginis granoso. 



Chiton dispar. Chit, testd ovali, leevigatd, cinered, albido nigroque 

 varid ; valvarum areis centralibus leevibus, postice longitudinaliter 

 subsulcatis ; valvd anticd, valvarum intermediarum areis laterali- 

 bus et valvee posticee ared posticd granulosis : long. I, lat. -rV> poll. 

 Hab. sub lapidibus ad littora Insulse Sabogae in Sinu Panama?. 

 The name has been suggested by the circumstance of the central 

 areae being quite smooth, while the lateral areas are covered with 

 granules. — G. B. S. 



Chiton rugtjlatus. Chit, testd oblongd, leevigatiusculd, olivaced, 

 albicante varid ; valvd anticd, valvarum intermediarum areis late- 

 ralibus et valves posticee parte posticd concentrice undulato-rugu- 

 losis ; areis centralibus leevibus, marginibus rugulosis : long. iV, 

 lat. -xV poll. 



Hab. ad oras Americas Centralis. (Puerto Portrero and Inner Lo- 

 bos Island.) 



Found under stones at low water. — G. B. S. 



Chiton Columbiensis. Chit, testd ovatd, depressiusculd, cinera- 

 scente ; valvd anticd, valvarum intermediarum areis lateralibus et 

 valvee posticee ared posticd sparsim granulosis; intermediarum 

 areis centralibus et posticee ared anticd longitudinaliter granoso- 

 lineatis : long. 1 T V» lot. •£-§- poll. 



Hab. in Sinu Panamae. 



Found under stones at low water. — G. B. S. 



Chiton functulatissimus. Chit, testd ovato-oblongd, leevi, colo- 



