26 



Hub. ad oras Americas Meridionalis. (Port St. Elena, west coast 



of Columbia and Panama.) 

 In boldness of sculpture this species comes nearest to Chit, sul- 

 catits. 



It was found on stones at low water. — W. J. B. 



Chiton subfuscus. Chit, iestii ovali, subfuscd, paUidiore varid, 

 valvis terminalibus lineis suhinterruptis concinnis radiatis ; val- 

 vanim intermediarum areis Intendibus radiatim ccntrnlibus lon- 

 gitudincditer subsulcatis ; limbo granoso, grants externis majori- 

 bus : long. %%, lat. \% poll. 

 Hub. ad littora Americae Meridionalis. (Island of Chiloe.) 

 Var, area intermedia valvarum Isevi, parte centrali solum longi- 

 tudinaliter subsulcata. 



In its form and general appearance this species resembles Cliit. 

 Goodallii. One specimen is of a dark rusty colour with a tinge of 

 lead gray; another is very dark chestnut brown. 

 It was found under stones at low water. — G. B. S. 



** Ligamento marginis subgranoso, quasi velutino. 



Chiton Lyellii. Chit, testa oblo7igd, nigro, viridi, roseoque varid; 



dorso elevatiiiscido ; valvd untied radicdim svbgranosd ; areis la- 



teralibus valvarum intermediarum radiatim obsolete granosis ; 



limbo minutissime subgranoso, quasi velidino : long. 1^, lat. %poll. 



Hub. in Polynesia. (Pilcairn's Island.) 



It was found in small round hollows formed by Echini in exposed 

 situations at low water mark, — G. B. S. 



*** Ligamento marginis velutino. 

 Chiton luridus. Chit, testa oblongd, elevatiusculd, cinered ; 

 valvd anticd, areis lateralibus valvarum intermediarum et valvd 

 posticd scabj-oso- granulosis ; areis centralibus valvarum interme- 

 diarum longitudinaliter sulcatis, interstitiis scabroso-granidosis : 

 long. l-rV? l(il- tV poll' 

 Hab. ad littora Stae Eienae. 



This small species is remarkably scabrous all over ; the scabrosity 

 of the central area of the intej'raediate valves being arranged in 

 longitudinal rows. 



It was found on stones in five fathoms water. — G, B. S. 



Chiton limaciformis. Chit, testd elougatd, limaciformi, varie- 

 gatd ; dorso rotundato ; lateribus anterioribus valvarum interme- 

 diarum emarginatis ; valvd anticd, areis lateralibus valvarum 

 intermediarum et posticd parte valvce posticce longitudinaliter 

 granulosis ; areis centralibus longitudinaliter sulcatis : long. 



1-rV' l^t- -ro- poll- 



Hab. ad oras Americae Meridionalis. (Inner Lobos Island in 

 Peru, and Guacomayo in Central America.) 



The intermediate valves are nearly as long as they are wide, are 

 deeply notched on each side in front, and when viewed on the under 

 side appear much contracted : the lateral areae do not meet in the 

 centre of these valves. — G. B, S. 



