234 NOTES ON THE BRITISH JURASSIC BRACHIOPODA. 



however, a very large number of forms to which as yet 

 nam.es have not been given, and others which have manu- 

 script names, but have not yet been figured or described by 

 their authors. This applies to other genera and species of 

 Jurassic Brachiopoda, many of which are in my collection. 



One important feature in connection with the Terebratulee 

 is that they can conveniently be arranged in groups, such as 

 fimbria, maxillata, punctata, sphasroidalis, etc. ; in fact, it is 

 often much easier to place them in such groups than to 

 distinguish between the species, some of which are so closely 

 allied that it is almost a matter of impossibility to separate 

 them. In this respect the same may be said of the Rhyn- 

 chonella^, and of the so-called Waldheimiee. 



Some species were very prolific — Ter. punctata, and its 

 varieties, from the Lias, and Ter. globata, fivihria, 'maxillata., 

 and intermedia from the Oolites ; on the other hand, Ter. 

 jauherti and walfordi from the Lias, and Ter. cranes, tawneyi, 

 and euides, from the Oolites, are unquestionably among the 

 rarest forms. 



This is undoubtedly a good centre to radiate from in search 

 of Terebratulae, and it may also be said of RhynchonellEe 

 and other brachiopods. Around our city the Lias and 

 Oolites are well developed, and many species may be col- 

 lected. In the Somerset-Dorset area the larger percentage 

 of species have been found. Again, in close proximity to us 

 are the Cotteswold Hills, where another large and interest- 

 ing series have been obtained. 



Types of the following species may be seen in the Bath 

 Museum : — 



Ter. punctata, var. edwardsii, Dav., from the Middle Lias 

 of Ilminster. 



Ter. punctata, var. suhpunctata, Dav., from the Middle Lias 

 of South Petherton. 



