380 Mr. W. Clark^s Observations on recent Foraminifera. 



Hah. Zq p. occ. ad aggeres arenosos umbrosos circa St. Sever, 

 copiose et pulcherrirae ! 



43. Distickium, Bryol. Europ. 



254. D. capillaceum, Hedw. Muse. Frond. 2. t. 26 (sub Swart- 

 zia) ; Br. Europ. Distichium, p. 4. t. 1 ; M. P. 199. 



Hab. Zi_4 in rupibus udis prsesertim calcareis, frequens. 



255. D. indinatum,lledw. Muse. Frond. 2.t.27 {suh Swarizia) ; 

 Br. Europ. /. c. p. 5. t. 2; M. P. 200. 



Hab. Z3_4 P. c. in rupibus micaceis juxta lacum alpinum diet. 

 Lac Lehou ; nee non in valle alpina Esquierry : rarissimum. 



[To be continued.] 



XL. — Observations on the recent Foraminifera. 

 By William Clark, Esq. 



To the Editors of the Annals of Natural History. 



Gentlemen, Norfolk Crescent, Bath, Feb. 22, 1849. 



fi! HAVE for many years employed myself in malacological pur- 

 suits, and had opportunities of observing some of the recent Fora- 

 minifera, particularly those of the coralline zones of the South 

 Devon coasts. 



As long ago as 1834-5, my friend Mr. Jeffreys of Swansea, 

 vi^ho by his extensive researches throughout the British Isles for 

 new and rare Testacea has rendered eminent services in promo- 

 ting conchological and malacological science, was on a visit to 

 me at Exmouth, during which we had frequent disquisitions on 

 the nature of those minute organisms which at that time were 

 termed Cephalopoda ; I then strenuously advocated that they be- 

 longed to the coralline group, and were of course polypiferous, 

 and that I believed them, in their natural habitats, to be fixed, si- 

 milarly to the great mass of Zoophytes ; these views, except on the 

 point of fixity, have been fully corroborated by M. Ehrenberg's 

 observations, and during the last summer, 1848, I was enabled, 

 by the occurrence of very recent specimens of Orthocera Legu- 

 men, to ascertain some new facts relative to these foraminiferous 

 polypes. It has been, I believe to this day, a matter of doubt, if 

 they have at the anterior end tentacular filaments, and as proof 

 in the affirmative, in Orthocera Legumen, I have specimens in 

 which the dried linear cilia, about eight, are distinctly to be seen 

 lying radiated in the external sulci of the striulse of the aperture, 

 and I have little doubt that the creature can withdraw them within 

 the internal hollows of the striae. 



