1905. | the Englush Species of Nummulites, etc. 305 
Nummulina planulata, Lamk., var. Prestwichiana, T. R. Jones. (‘Q.J.G.S., 
vol. 18, 1861, p. 93.) 
Nummulites wemmelensis, de la Harpe and van den Broeck, var. Prest- 
wichiana, T. R. Jones. De la Harpe’s “ Etude des Nummulites de la Suisse,” 
‘Mém. Soc. Palzont. Suisse,’ vol. 10, 1883, p. 169. } 
Nummutlites wemmelensis, de la Harpe and van den Broeck, var. elegans, 
Sow. T. R. Jones. ‘Q.J.G.5S.,’ vol. 43 (1887), p. 132. 
Of the latter no specimens have, in recent years, been known to occur near Emsworth, 
or indeed anywhere else in England, and it appears probable, as Professor Jones has 
pointed out (11), that in addition to confusing two species under one specific name, 
Sowerby assigned a wrong locality to one of them by referring to Emsworth, a village 
near Chichester, a specimen from a Belgian or some other Continental locality. 
In 1861 Professor Jones having specimens from Bed No. 29 of Alum Bay and from 
High Cliff referred to him for naming, and supposing that all the specimens named by 
Sowerby J. elegans should be referred to WV. planulata, gave the name XV. planulata var. 
Prestwichiana to the apparently new variety from Bed 29. (9.) 
In 1879 de la Harpe was, as we have seen, reviewing the species of nummulites, and 
received from Professor Jones specimens from Bed 29. He considered them to represent a 
local variety of a species widely distributed in Belgium and France, on which in associa- 
tion with van den Broeck, he bestowed the name of WV. wemmelensis (“ Etude,” p. 169), 
distinguishing the Alum Bay specimens under the name var. Prestwichiana (or, in the 
description of Plate 6, as Prestwichz). 
In the same (posthumously published) work de la Harpe gave the name UW. elegans, 
Sow., to a “species” (the megalospheric form of JV. planulata), which, as he stated, is 
distinct from wemmelensis and its varieties, giving in the list of synonyms :— 
1829, WV. elegans, Sow. (pars) ‘ Mineral Conchology,’ vol. 6, p. 76, Plate 538, figs. 9, 10, 
11 (non figs. 6, 7, 8). Thus referring to fig. 10 among others in Sowerby’s plate for an 
illustration of this species. 
In 1886, Professor Jones having recognised that some of the specimens named 
elegans in the Sowerby Collection were identical with his WV. planulata var. Prestwichiana, 
and de la Harpe’s and van den Broeck’s wemmelensis var. Prestwichiana, from Bed 29, in 
Alum Bay, wrote his paper on J. elegans and the other English Nummulites (11), 
in which he withdrew the name Prestwichiana and pointed out that the proper name of 
the species is VV. wemmelensis, de la Harpe and van den Broeck, var. elegans, Sow. (In 
many parts of the paper the name J. elegans is, however, employed.) He also expressed 
the opinion that one of the sections on Sowerby’s tablets was the identical specimen from 
which fig. 10 in Plate 538 of the ‘ Mineral Conchology’ is taken. 
It thus comes about that the same figure (Plate 538, fig. 10) in the ‘ Mineral 
Conchology’ is claimed by de la Harpe as an illustration of his WV. elegans, and by 
Professor Jones as an illustration of his wemmelensis var. elegans from Bed 29 of 
Alum Bay. 
In this paper I have used the name WV. Orbignyz (Gal.), which was given in 1837, for the 
species as a whole, as being that which was first applied to a member (a microspheric 
specimen) of the main body of it. 
NV. elegans, Sow. (1829) has, of course, priority over Orbignyt (Gal.), but this was 
applied to a member of the Alum Bay variety, which, according to de la Harpe, is so 
distinct from the Continental forms that it is impossible to take it as the type of the 
species (10, p. 92). These Continental forms were named WV. wemmelensis, de la eae 
and van den Broeck in 1883. 
