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among- the rostrated Tindarias, for which Yerril and Bi.ish (1) pro- 

 posed the subgenus !I?lndarlopsis . 



(1). Am. Jour. Soi . , 4-th ser. , vol. ?^ p. 59, 1897. 



The na-:ie is given in recognition of the services of Dr. 

 James E. Duerden, now of Rhodes University Oolle^^e, (Jrahamstown, 

 South Africa, who while Ourator of the Lluseitm at Kingston, Jam- 

 aica, collecte' the Bowden material which constitutes the Duer- 

 den Collection of the Johns Hopkins University. 



Occurrence .- Lower Miocene: Bowden beds, Bowden Ja-naica. 



