152 Miscellaneous. 



acquired the very elegant forms which have obtained them their 

 name, have been metamorphosed under my eyes. They quitted their 

 peduncle, characteristic of the crinoid form, to become free and mix 

 with the adult Antedons, in the midst of which it was impossible to 

 recognize them. 



I believe, therefore, that, by following the preceding indications, 

 all zoologists will be able to verify the observations of Messrs. 

 W. Thomson and Carpenter. This has already been done by MM. 

 Lemire and Myevre, who, after having worked a long time under my 

 directions in my laboratory, at the museum of the Sorbonne, went, 

 by my advice, to Roscoff. 



M. Lemire, having quitted Roscoff only after the high tide at the 

 beginning of October, could no longer find any Pentacrini at this 

 period ; even in September their number appeared to me to have 

 diminished visibly, but we still found many Antedons. M. E. 

 Grube, of Breslau, who joined us at the beginning of September, can 

 confirm this. 



Hence we may suppose that it is chiefly in the warm season that 

 we may be certain of finding living Encrinites in the place which I 

 have indicated and of repeating the observations of the English 

 authors. 



A last remark will explain the care here taken to indicate this 

 station. In excursions in the environs of Roscoff — for example, to 

 Kainon, a plateau of rocks situated to the south-east of Sainte Barbe, 

 in the river of Saint-Pol-de-Leon, which is only uncovered at the 

 greatest tides, to the north of Thirzaouson, to the west of the Fort 

 of PerharkU and of the Roche du Louj>, I have never found the Pen- 

 iaerinus ; and yet the Saryassum abounded in nearly all these places. 

 The conditions combined in the sheltered rivulets behind the isle 

 Verte are, therefore, doubtless those most favourable for oviposition 

 and the development of the embryo. 



It seemed to me useful to call the attention of naturalists to 

 a locality where we are able to repeat an obsei-vation of this import- 

 ance so easily ; moreover the Pentacrinns euroji'^eus, placed by the 

 side of its Antedon rosaceus, is rare in museums, because naturalists, 

 especially French naturalists, who have collected it, are, I believe, 

 few in number ; and I do not know that it has yet been indicated 

 upon our coasts. — Comptes Rendus, tome Ixix. December 13, 1869, 

 pp. 1253-1256. 



Observations on the iSalivary Glands in Myrmecophaga tamandua. 

 By M. J. Chatin. 



The author has discovered in this mammal a third pair of sub- 

 maxillary glands, having, like the others, proper excretory ducts. — 

 Comptes Rendus, November 15, 1869, tome Ixix. p. 1017. 



