Prof. T. Rupert Jones — On some Fossil Estherice. 389 



or shale, slightly micaceous, from the Lower Keuper of Windsheim, 

 Middle Franconia (Bavaria). 



B. Pukbeck Esthers. 



1. Estheria subquadrata (Sowerby). PL XII. Figs. 1, 2a, 2b. 

 Estheria elliptica, Dunker, var. subquadrata (Sow.), Monogr. Fossil 



Estheriae, Palaeont. Soc. 1863, pp. 103-109, pi. 3, figs. 18-29. 

 Length. Height. 



Fig. 1. 5-6 mm. 4-0 mm. 



Fig. 2. 4-5 mm. 38 mm. 



Doubtless there is a close zoological connection between Estheria 

 elliptica, Dunker, and E. subquadrata (Sow.), but it now appears to 

 me, especially as no specimens exactly like Dunker' s type ("Monogr. 

 Foss. Esth."pl. 4, fig. 1), nor its most quadrate variety (fig. 3), have 

 been met with in England, that it will be advantageous to palaeon- 

 tologists for us to allow the slight difference in outline, and the more 

 striking difference in the interstitial ornamentation, to constitute 

 specific (and not merely varietal) distinctions, and thus allow 

 E. subquadrata to stand by itself as a species. 



The specimens collected by the Eev. W. K. Andrews, F.G.S., 

 in the Vale of Wardour, and kindly submitted by him for exami- 

 nation five or six years ago, comprise an internal cast retaining 

 only a small remnant of the test, PI. XII. Fig. 1, and a perfect, but 

 smaller, individual, Fig. 2a, b. In Fig. 1 we have an oblong form, 

 with advanced anterior angle, and a nearly vertical, slightly convex 

 front edge. This is proportionately shorter than fig. 23 in pi. 3, 

 " Monogr. Foss. Esth.," and more fully curved on the ventral margin; 

 but its long back distinctly separates it from fig. 3 of pi. 4 op. cit. 



In our Fig. 2a we see the nearly exact counterpart of fig. 19, pi. 3, 

 of the Monograph, with an ornament corresponding more or less 

 closely with that of figs. 21, 22, 24, 28, and 29 (from the Wealden 

 of Sussex), but not with that of the Hanoverian specimens (pi. 4, 

 figs. 4, 5, and 7). 



These specimens (Figs. 1 and 2, sent to me about 1884) occur in 

 a brownish sandy (Middle-Purbeck) stone, a little above the top 

 "lias" of the Purbeck beds, in the limestone-quarry, at Teffont- 

 Ewyas ; and the same form is abundant in specimens (sent in 

 November, 1888) of a Cypridiferous limestone on the same horizon, 

 a little below the "Cinder," and therefore also from the Middle 

 Purbecks. In the sandy bed fragmentary twigs of a Thuia occur ; 

 and in the limestone Cypridea punctata is plentiful, with Cyprione 

 (probably C. Bristowii and another), and Metacypris (?). This 

 Estherian limestone was from a small quarry on the railway south 

 of the River Nadder, at Lower Chicksgrove, about two miles west 

 of the Rectory where the Rev. W. R. Andrews resides. 



2. Lately Mr. Andrews has discovered some other Estheria, larger 

 in size, and with a different ornamentation, and therefore of a 

 distinct species, in a band of black and brown shaly clay, with the 

 Middle-Purbeck Cypridea fasciculata, five feet below the horizon of 

 the Estheria subquadrata mentioned above, and in the same quarry 

 as that in which the specimens shown by Figs. 1 and 2 were found. 



