Oji Pentacriiii m Great Oolite 7iear Basle. 49 



Miiller, in a cigar-box, and therefore the animal liad existed 

 for some months without water. How, then, had it lived ? 

 It appears to me that the animal had breathed atmospheric 

 air by the right side of its pulmonary chamber, which the 

 researches of Jourdain and Sabatier have shown to be vascu- 

 larized, but had died on account of having received no help 

 from the left side of the pulmonary chamber, which contains a 

 ctenidium. The fact that a Helix punctata which Mr. George 

 also brought over in the same box was alive until yesterday, 

 when I dissected it, shows, I think, that Anqmllaria, though 

 amphibious, cannot exist out of water for a lengthened 

 period of time. 



Note. — Since sending the above to press I find that the 

 name I propose has been preoccupied by Lamarck. I there- 

 fore, in its place, suggest for it the name of Amjmllana Georgii^ 

 after the gentleman who found it and sent it to me. — 



J. w. w. 



VI. — Pentacrini in jjeculiar Beds of Great Oolite Age near 

 Basle. By F. A. Bather, B.A., Assistant in the British 

 Museum (Natural History). 



A MEMOIR entitled ' Description des Fossijes de la Grande 

 Oolithe des environs de Bale,' by Mons. Edouard Greppin, 

 and consisting of 137 pages of text, with ten plates, was pub- 

 lished early this year in the ' Mcmoires de la Societe Palcon- 

 tologique Suisse,' vol. xv. (1888), at Basle and Geneva. M. 

 Greppin, whose collection I had the pleasure of working 

 through last summer at Basle, kindly gave me for examination 

 some stem-joints of Pentacrinus which were new to me. He 

 has printed in his memoir (pp. 183, 134) extracts from the 

 letter that I wrote him anent these specimens ; my drawings, 

 however, he was unable to reproduce. To found a species on 

 stem-fragments is, though good may come, to do evil j but to 

 describe a new form without adequate illustration is utterly 

 condemnable. I hasten therefore to complete the description 

 by the accompanying figures, and at the same time would 

 wish to borrow from M. Greppin's work such an account of 

 the rock and of the associated fossils as may invest with in- 

 terest an otherwise dry communication. 



The Great Oolite is the most developed constituent of the 

 Ann. & Mag. N. Hist. Ser. G. Vol. iv. 4 



