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



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

 copiose et pulcherrirae ! 



43. DisticJiium, Bryol. Europ. 



254. D. capillaceum, Hedw. ]\Iiisc. Frond. 2. t. 26 (sub Sivart- 

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



Hah. Zi_4 in rupibus udis pi-sescrtim calcareis^ frequens. 



255. D. inclinatum,lled\\ . JMusc. Frond. 2.t.27 {snh Swartzia) ; 

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



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

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



[To be continued.] 



XL. — Observations on tjie recent Foraminifera. 

 By William Clark, Esq. 



To the Editors of the Annals of Natural History. 



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



I 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, 

 who 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. 



