108 SUPPLEMENT TO THE CRAG MOLLUSCA. 
what was meant by Forbes m his ‘ Aigean Report’ and by myself in the ‘ Crag Mollusca” 
(p. 48), there seems no reason why the name of Forbes, first published for the elongated 
form, should not be adopted as a specific one for it. 
Lima ovata, S. Wood. Crag Moll., vol. ui, p. 48, Tab. VII, fig. 5. 
This shell somewhat resembles Z. crassa, of Forbes, of which two specimens from the 
Mediterranean were given by Forbes to me, but it is much more clongated and 
has less imbricated costa than crassa. It appears to me also different from Z. Sarszz. 
Ostrea nivea, Ren. (figured by Broc., tab. 14, fig. 14), was given by me as a synonym for 
L. subauriculata. Myr. Jefireys, in his Cor. Crag list to Mr. Prestwich’s paper, identifies 
it with LZ. ovata, but O. nivea is more than double the linear dimensions of ovata, and is, 
moreover, described by Philippias “ /ateribus compressa,’ which is not the case with ovata. 
Philippi, moreover, adds to the description of ZL. nivea ‘medio longitudinaliter sulcata,” 
which description, as weil as the size, assimilates it to subauriculata. "The Belgian Crag 
shell called nzvea by Nyst is also described as “‘/ateribus compressis.” 
Lima exis, 8. Wood. Crag Moll., vol. ii, p. 43, Tab. VII, fig. 6. 
Localities. Cor. Crag, Ramsholt, Sudbourn, and Sutton. Red Crag, Walton and 
Butley. 
This shell is by Mr. Jeffreys in ‘Quart. Jour.,’ vol. xxvii, p. 139, referred to SZ. 
mflata, Lam., as also by Mr. Bell in ‘Ann. and Mag. Nat. Hist.,’ May, 1871. The 
authors of the ‘ Brit. Moll.’ (vol. i, p. 268) place the Crag shell exis as a synonym 
to L. hians. Ihave re-examined my specimens, and find a difference between the Cor. 
Crag shell and the recent cnflata, the former having a narrower hinge-line, and being less 
inflated than the latter. At the same time, however, it must be admitted that the speci- 
mens of eaz/is from the Red Crag approach rather nearer to the living zzflata. In ‘ Crag 
Moll.,’ vol. ii, p. 43, it was said of the shell that it somewhat resembled Z. cnflata, but is 
flatter and undeserving that name. Specimens of zzfata from the Italian Tertiaries are 
much larger and more tumid. 
Lima n1ans, Gmelin. Crag Moll., vol. u, p. 44, Tab. VII, fig. 2. 
Localities. Cor. Crag, Ramsholt. Middle Glacial, Hopton ? 
