Analytical Notices. 123 



f. 3. Profile view of the right side of an Achlysia. 



/. 4. The animal opened on the side of the belly. 



/. 5. Profile view of the left side of an Achlysia. 



f. 6. The beak and six legs. 



f. 7. Portion of the Achlysia very highly magnified : this figure 

 shows that the beak and legs, situated at the base of the notch, 

 had not the power of reaching to its lower orifice, and that it is 

 only by lying on its sides, which are very compressed, that it 

 can attach itself to external objects. 



Note on the genus Astarte, Sowerby, (Gr as sin a, La- 

 marck,) by M. DE LE JONKAIRE, (p. 127 .) 



After some remarks on the strata in which the fossil species 

 of this genus are found, a monograph is given of the whole of 

 them, comprising four new species from the " Calcaire grossier;" 

 nine from Sowerby's Mineral Conchology ; and three' from Broc- 

 chi (Venus Br.). 



The author very properly retaius the name given to this genus 

 by Sowerby, long before Lamarck's work appeared, — following 

 the genera of recent and fossil shells, by Mr. G. B. Sowerby. 

 The names of the species enumerated are as follows — A. Omalii t 

 Corbuloides, Basterotii, Burtinea, CJonkaire,) lucida, elegans, 

 cuneatq, plana, obliquuta, lineata, excavata, planata, rugata, 

 (Sowerby), senilis, incrassata, dt/sera, (Veneres, Brocchi). 

 Figures are given of the four first, and of A. rugata, Sow. 



B. 



Mineral Conchology. 



The 78th number of this work contains, Plate 444, Astarte 

 irigonalis, orbicularis and pumila; PI. 451, Ammonites Icevius* 

 cuius, corrugatus and varicosus; PI. 452, Am. Turnert: PI. 453, 

 Am. rotiformis; PI. 454, Am. multicoslatus ; Pi. 455, Actteon 

 cuspidatus and acutus. 



