﻿Prof. Bailey on Fossil and Recent Infusoria. 329 



" Has duas formas Prof. Bailey primus observavit et delineatus misit. 

 Multa specimina ipse vidi." Ehr. 1. c. p. 19-20. 



These well characterized species are very abundant in the Ber- 

 muda Tripoli, but have not been detected at any other locality. 



6. " Triceratium Solenoceros. (Fig. 23.)— Testukelateribus profunda 

 concavis, apicibus longe tubulosis radiatis subacutis superficie granulo- 

 rum seriebus radiantibus rcctis ornata, granulis in y^ linea? 15. Diam. 



S V". Bermuda. 



" Prof. Bailey hujus iconem circumscriptam misit. Nonnulla speci- 

 mina ipse inveni." Ehr. I. c. p. 26. 



This remarkable species is easily recognized by the excessively 

 elongated angular processes. 



7. "Zygoceros? Bipons. (Fig. 24.)— Testula a latere lanceolata 

 utroque apice acuto et corniculo admodum parvo instructo, stricturis 

 mediis Isevibus duabus, superficie subtiliter granulata nee radiala. Diam. 



;V". Bermuda." Ehr. 1. c. p. 26. 



The true nature of this form is unknown. It is quite common 



in the Bermuda earth. 



For an account of many other interesting forms from Bermuda, 

 I must refer to Ehrenberg's own memoir. A list of all the species 

 noticed by Ehrenberg is given in the table on pages 331-335, by 

 which it will be seen that this remarkable infusorial deposit agrees 



nia and Maryland in containing many species, 

 * Rncrprsii. Goniothecium Odordella, various 



Eapodisc 



D 



considered as exclusively American forms. It is also remarkable 

 that the Bermuda specimen, like all those from Virginia, contains 

 no trace of calcareous Polythalamia, although I have found these 

 to be very abundant in specimens of recent sands and limestones 



of the Bermuda Islands. 



The occurrence of this remarkable infusorial formation at Ber- 

 muda is of much interest, as it shows that such formations are not 

 confined to the harbors and estuaries of a continent, but may 

 also occur on the "still vexed" shores of the lone isles of the 



ocean. 



be 



f Bermuda. No mention of 



Tripol 



geology of those islands which I have yet seen. It is therefore 



