SUPPLEMENTAL NOTES 



TO THE 



MONOGRAPH OF THE FOSSIL ESTHERIA. 



I. The recent Estheria, E. Dunkeri, E. Jonesi, E. Loftusi, E. Caldwelli, E. Rubidgei, and 

 E. Macgillivrayi, and Limnetis Gouldii (p. 7), have been described and figured by Dr. Baird in 

 the 'Proceedings of the Zoological Society' for 1862, p. 147, &c, pi. 15. 



II. With reference to the probability of some fossil Estheria still passing as Aviculidce, &c. 

 (p. 13), it should be remarked that Prof. M'Coy has already intimated that some fossils 

 regarded as Molluscs may prove to be Entomostraca (' Synopsis of the Carboniferous Fossils 

 of Ireland/ 1842, p. 164). 



III. Another locality for Estheria membranacea (p. 14) is Banniskirk, Caithness. 



IV. To the list of localities for Estheria minuta in Germany, enumerated at pages 41, 50, 

 55, &c, several may be added from C. W. Giiinbel's ' Geognostische Beschreibrung des 

 bayerischen Alpengebirges und seines Vorlandes' (8vo, Gotha, 1861), a national geological work 

 of great value. Besides the classification of the Triassic beds of Wiirtemberg, given at 

 pp. 46 — 49 of the ' Monograph/ we now have the grouping of the Bavarian Trias, for comparison 

 with that of Alsace (p. 53) and England (pp. 62 — 65) j and this is the more interesting as 

 Estheria minuta occurs in two of the divisions of the Trias in the Bavarian Alps, and at least 

 in one (the Bunter) on the south side of the Alps. 



Herr Giimbel thus groups the members of the Alpine Trias of Bavaria : 



I. Keuper 



Upper Keuper or Rhsetic 

 Group 



Middle Keuper or Dolomite 

 Group 



Lower Keuper or Letten- 

 kohle Group 



Kossen and 

 Gervillia Beds. 



1 . Upper Keuper-limestone (Oberer Keuperkalk 



oder Dachsteinkalk); with Megulodus tri- 

 queter. 



2. Upper Shell-keuper (Oberer Muschel- 



keuper) ; with Aviculu contorta and the 

 Bone-bed. 



1. Plattenkalk ; with Rissoa Alpina. 



2. Hauptdolomit. Dachstein-Dolomit. 



3. Gyps und Rauhwacke. 



f 1 . Lower Shell-keuper (Unterer Muschelkeuper) ; with Cardita 

 crenata. \_Estheria minuta.] Raibl Beds. 



2. Lower Keuper-limestone (Unterer Keuperkalk) ; with Monotis 



salinaria and Ammonites globosi. [E. minuta.'] Hallstatt 

 Beds, Esino-limestone, &c. 



3. Lettenkeuper, shales and sandstone ; with Halobia Lommeli 



and Pterophyllum longifolium, [E. minuta.] Partnach 

 and St.-Cassian Beds. 



