NOTES AND CORRECTIONS. 121 



contourneX ornee de stries concentriques d'accroisement, comme rostree a la region anale." It is the 

 Isocardia concentrica of Phillips, 'Geol. York.,' i, pi. xi, fig. 40, but not of Sowerby. The Yorkshire 

 examples may, therefore, be considered as dwarfed forms of this really magnificent shell, the southern 

 examples of which have the distinguishing features of the species much more strongly marked ; the umbones, 

 more especially, are larger and more elevated, the posterior extremity being also more rostrated. It 

 is worthy of remark that this degenerated form is the only one of the genus that has been obtained from 

 the whole of the Jurassic rocks of Yorkshire. 



Anatina undulata and Anatina plicatella, Tab. II, Part II, transpose figs. 6 and 4 upon the tab. ; 

 the references to them at p. 118, and also upon the page facing the tab., will then be correct. 



Pholadomya ovulum, Part II, Tab. XIII, fig. 12, alter the title to Pholadomya ovalis, Sow. ; also at 

 p. 122. 



Turbo capitaneus, Goldf., Part I, p. 65, erase the words " Tab. IX, fig. 33," and alter to " Supplement, 

 Tab. XLI, fig. 1." The index to Tab. IX, fig. 33, should be altered to Amberleya Jurassl, Supplement, 

 p. 19. 



Stomatia? Buvignieri, Part I, p. 85, alter the generic title to Nerita. Another figure is given, 

 Supplement, Tab. XLI, fig. 7. 



Part II, Tab. VI, fig. 15, p. 67. I agree with Dr. Oppel (' Juraformation,' p. 487) in the propriety 

 of separating this Lucina from L. Bellona ; its title should, therefore, be Lucina Lycetti, as suggested by 

 Dr. Oppel. 



Cerithium Roissii, Part I, p. 32, alter the generic title to Fibula. See p. 10 of this Supplement. 



Myacites cratsiusculus, Part I, p. 112, alter the generic title to Homomya. See p. 89 of this Supple- 

 ment. 



Myacites Fezelayi, Part I, p. Ill, alter the generic title to Homomya. See p. 88 of this Supplement. 

 Myacites gibbosus, Part I, p. 138, alter the generic title to Homomya. See p. 88 of this Supplement. 



Corbula involuta, Part I, p. 97, alter the title to Corbula Buckmani. See p. 63 of .this Supplement. 

 Corbula Buckmani will be found refigured, Tab. XXXIV, figs. 6, 6 a. 



Part II, p. 123, erase the first reference to Pholadomya Seemanni, Tab. II, fig. 1, which is P. 

 solitaria. 



Part II, p. 28, Tab. IV, fig. 12. This little shell, erroneously ascribed to the Modiola pulcherrima of 

 Roemer, has been rectified by Professor Morris, ' Catal.,' p. 210, under the appellation of M. Lycetti. 

 Compared with the allied species of the Hilsthone, it is smaller, more inflated, the radiating lines are more 

 narrow or more distantly arranged, the test is very thin, and the specimens are usually imperfect. 



Mytilus (Modiola) lumidus, Part II, p. 37, Tab. IV, fig. 5. It is stated that the rude figure of a 

 Modiola, Young and Bird, 'Geol. York. Coast,' pi. vii, fig. 10, is intended to represent this shell, and 

 that Professor Phillips inserted it in his list of Yorkshire fossils, 'Geol. York.,' i, p. 171, in the following 

 terms: "Modiola ungulata, Coralline Great and Inferior Oolite." It is not uncommon in the upper stage 

 of the Inferior Oolite in the Cotteswold Hills. 



Purpuroidea Moreausea, Part I, p. 27, Tab. IV, figs. 1 4, alter the title to P. Morrisea. The 

 publication of the splendid work of M. Buvignier on the Palaeontology of the Meuse has shown that we 

 were mistaken in assigning our Minchinhampton species to that figured in a very indifferent manner in 

 the little memoir by M. Buvignier in 1843. The new specific name selected for our shell by the latter 

 author should therefore be adopted. 



Part I, Tab. II, figs. 3, 3 a, p. 12. The Ammonite obtained at the base of the Great Oolite, and 

 referred doubtfully to A. macrocephalus, is now ascertained to be A. viator, D'Orb., ' Pal. Fr. Terr. Jurass.,' 



16 



