482 CRETACEOUS PELECTPODA 



teeth under the beak;' type, S. Uneolutus, from cretaceous rocks. Conrad states 

 that the genus is allied to Leptosolen, though as to form it rather appears to exliibit 

 greater relation to some Tellinidje, and as regards the hinge-teeth of the right 

 valve it is allied to Solecurtus. 



Page 98. — l<t. Cleidophorus. I have again referred to this genus in the Family 

 SoLEMTiDJE, p. 269 ; it is difficult to decide upon its classification, until the hinge 

 has been made correctly known. 



Page 100, after No. 34, add — Solyma lineolatus, Conrad, (loc. cit.) from cre- 

 taceous beds of Haddonficld, Now Jersey. 



Family, — Tellinid^. 



Page 177, under 8/, Linearia, Con., note some additional information given 

 about the genus in Am. Journ. of Conch., vol. VI, p. 73. Conrad states that 

 when he first proposed the name, he had not seen the hinge of the right valve, 

 which shows " two small diverging, nearly equal teeth, directed obliquely forward, 

 the anterior one very oblique ; and two rather long lateral very distinct pits, the 

 posterior one very distant from the apex." 



Page 118. '8i TelUnimera.' Conrad (Am. Journ. Conch., VI, p. 73,) writes 

 now TelUniera, which name is hardly an improvement upon the original denomina- 

 tion. He considers T. ehorea, Con., as type, and adds the following characteristic 

 of the hinge of the left valve: 'cardinal teeth two; anterior one V (?A-) -shaped, 

 nearly direct, or slightly directed anteriorly; the posterior tooth bifid, oblique; 

 posterior lobe thick, and longer than the anterior lobe ; cardinal plate comparatively 

 broad laterally, posteriorly channelled ; anteriorly with a small pit, apparently for 

 the reception of a lateral tooth.' 



On page 119 add — 



8o. Aenona, Conrad, 1870, (Am. Journ. of Conch., VI, p. 74). 'Equivalved, 

 without fold; hinge character: two compressed, very small, widely diverging 

 teeth in the right valve ; lunule very narrow, lanceolate, and marked by a deeply 

 impressed line;' type, Tellina Eufalensis, Con., (see p. 124, No. 46). This species 

 is described as a sub-triangular, inequilateral shell, with the hinge margins 

 equally declining, summit (? beaks) not prominent, " left valve furnished with one 

 bifid and one rudimentary cardinal tooth ; lateral teeth distinct." 



I am at a loss to know why this shell should form a separate genus. The 

 characteristics given by Mr. Conrad could apply as well to about half a dozen of 

 other sub-genera of Tellina. 



Fage 124 add — 



42a, 425. Tellina multistriata et scutiformis, Briart et Cornet, (Foss. de 

 Bracquegnies, pp. 78 and 88, pi. viii, figs. 14-15 and 16-17, in M^m. Cour. Acad., 

 Belg., vol. xxxiv) ; both belong to Linearia. 



l^a. Tellina [Aenona] pajnjria, Conrad, from cretaceous beds at Haddon- 

 ficld, New Jersey, (Am. Journ. Conch, VI, p. 74). 



