“ PHASIANELLA.” 
251 
lines so characteristic of Pseudomelania are absent in these very smooth shells, 
which also in other respects differ from Pseudomelania rather too much to be 
regarded merely as a section. Similarly there is great outward resemblance 
in some of the Jurassic Phasianellas to Pli. australis, but the large calcareous 
operculum of Phasianella has never been discovered in connection with any of 
these Jurassic fossils. Hence we hesitate to class them with the Turbinid^. 
If Bourguetia striata is really one of the Pseudomelaniidge, it would seem to 
carry the second section along with it. Whilst retaining the name “ Phasianella ” 
for conventional purposes, we may regard the group as most probably belonging 
to the Pseudomelaniidae. In the Inferior Oolite the Phasianellas of this section 
seldom attain to any size, and are somewhat rare except at certain localities in the 
Lincolnshire Limestone, where they appear to replace the Naticas. To a con- 
siderable extent these Liucolnshire Limestone fossils are micromorphs of those 
occurring in the Glreat Oolite, but the forms so referred are not precisely similar, 
though these names are adopted in preference to our giving others. In the 
Inferior Oolite of the Cotteswolds “ Phasianella ” would seem to be extremely 
rare.^ In Dorsetshire it is sparingly represented by a very few forms, which are 
smaller than those of the Lincolnshire Limestone. 
187. “Phasianella” latiuscula, Morris and Lycett, 1851. Plate XIX, figs. 10 n, 
10 b. 
1851. Phasianella latiuscula, Morris and Lycett. G-reat Ool. Moll., p. 117, 
pi. XV, fig. 16. 
1884. — — — Hudleston, Geol. Mag., 
dec. 3, vol. i, p. 50. 
Bibliography, ^c . — This species was founded on a cast from the Scarborough 
Limestone, and the authors admit that their remarks were made with a certain 
degree of reservation. In 1884, no specimens, except the one in the York Museum, 
being available, I was unwilling to accept Ph. latiuscula as a species. There are, 
however, a certain number of forms, occurring chiefly in the upper beds of the 
Lincolnshire Limestone, which seem to tally fairly with Morris and Lycett’s figure 
and also with the specimen labelled Ph. latiuscula in the York Mnseum. 
Description : 
Spiral angle .... 50° — 55°. 
Height of body-whorl to entire shell . . 60 : 100. 
Length of well-grown specimens . . 25 — 28 mm. 
^ Lycett, in the 1st vol. of ‘Proc. Cottes. Nat. Club,’ p. 79, refers to Fh. turbini/ormis and 
Fh. suhanyulata. There is no evidence as to what these are. 
