THE BRITISH FOSSIL BRACHIOPODA. 359 



shells we now term Waldheimia ornitliocepJiala (fig. 871), Waldheimia digona (fig. 873), 

 and Terebratula maxillata (figs. 829 and 830). Tereb. maxillata has a short, slightly 

 reflected loop, and would therefore differ to some extent from those species which we 

 refer to Terebratula of Klein. 



In 1753 Klein, at p. 171 of his work above referred to, wrote : 



" Genus I. — Terebratula. § 426. Terebratulas, Luidiano titulo, vocamus Dichonchas 

 anomalas, rostro perterebrato, vid. Nomencl. Litliolog. Promotum hoc titulo. 



§427. Species: 1. Simplex; et rugosa Fab. Columns de Purp., Cap. xii, § 3, 

 page 32, figurse oblongse; margine sequali. Icon exstat in Tab. Nostr. xi, no. 74." 

 Klein reproduces Colonna's biplicated form; also his plicated one, which last is a 

 Phynchonella. 



Douville, in his paper already referred to, says : " Ce genre {Terebratula) a ete fondi 

 par Klein pour les Concha anomia de Fabio Colonna. Klein reproduit une des figures de 

 cet auteur representant une Terebratula fossile du groupe des biplicatce tres voisine de la 

 T. ampulla du Pliocene d'ltalie. C'est a cette figure, a laquelle Linne a applique le nom 

 specifique de Terebratula que nous prenons pour le type du genre." 



Linne's Anomia terebratula first appeared, as far as I am aware of, as a fossil, in the 

 tenth edition of the ' Systema Naturae/ p. 703, Holmiae, 1758, as follows ; 



"Anomia Terebratula 201. A. testa obovata laevi convexa: valvula altera triplicata, 

 altera biplicata. 



"Column. purp., 22, fig. 1. 



"List, angl, 240, t. 8, fig. 46. 



"Klein, ostr., t. 11, fig. 74. 



" Habitat fossilis. Natis alterius testse prominens pertusa est : extus plicae duae." 



Linne's reference to Lister cannot be correct, but as he also points to Colonna's figure 

 and that of Klein we know what the shell was he had in view. 1 



We really do not know from what formation the type of Colonna's and Klein's Tere- 

 bratula was derived. 



3rd Genus. — Liothyris, Douville ; type Ter. vitrea, Born sp. 

 For the reasons already stated I would place this so-called genus under the synonym 

 of Terebratula. The short loop and arched lamella agreeing in character with that seen 

 in Klein's genus. 



Mil Genus. — Dictyothyris, Douville ; type T. coarctata, Parkinson. 

 M. Douvilld informs us that the loop in his type does not differ much from that 

 observable in Klein's Terebratula, but it seems to me that there exists more difference in 

 the loop of this species, T. maxillata, T. intermedia, and some others than there does 

 exist between Terebratula and Liothyris. 



See also 'Ipsa Linnaei Conchylia,' by S. Hanley, p. 132, 1880. 



