igoi] Ami — Book Notice. 193 



designated Anahaia Anticostiaiia (see plate I, figs. 26, 27, 28); also 

 more properly called A. Anticostiensis, p. 23. 



10. Clidophorus Brazilianiis, Clarke — a form related to C. 

 planulatus, Conrad, and to forms from the Silurian of Arisaig. 



11. Bucaniella trilobata, Conrad, var. vira. ?7iuvdo, Clarke. 

 This is esteemed a variety of B, trilobata, a form of which occurs 

 also in the Silurian of Arisaig. 



Besides the above there are species of Conularia and Tentacu- 

 lites, &c. , which, taken with pieceding and other species des- 

 cribed and recorded, form an assemblage bearing affinities to 

 Silurian and Ordovician, and would constitute a Middle Silurian 

 fauna with a different association (as Dr. Clarke states) from the 

 Anlicosti Middle Silurian. 



II. The Devonian fossils described in Part 2 of this memoir 

 were mainly derived from material collected in the Devonian strata 

 about the little village ot Erer^ and along the banks of the rivers 

 Maecuru and Curua — obtained by Prof. Chas. Fred. Hart when 

 director of the now extinct Commisno Geologica do Brazil. Messrs. 

 Hartt and Rathbun had described Devonian fossils from the 

 Erer^-Monte-Alegre District. The Geol. Survey collections of 

 Brachiopoda (24 species) were reported upon by Mr. Rathbun 

 and the trilobites by Dr. Clarke. In this memoir Dr. Clarke des- 

 cribes the Molluscan fossils. It forms an elaborate publication 

 describing and illustrating (as all faunas should be illustrated, 

 from various portions of the continent) all the discovered species 

 of fossils in the Para Devonian not previously treated. They in- 

 clude seven species of Platyceras ; three of Diapharostoma, one 

 Pleurotomaria, two o'i Belle rophon, om Bucania, two oi Bucaniella, 

 two of Plecfotwlus, one Tropidocyclus ; Plomatis, a new genus of 

 Bellerophontes of type of B. palulus, from Corniferous and Hamil- 

 ton faunas, besides three Tentaculites. Of Pelecypoda, two 

 species oi Actinopteria, on^oi Liopteria, \.\\xq.q.o{ Modiomorpha, one 

 Goniophora, a new sub-genus (Toechomya) of Schizodus, of 

 authors, and two species of this new type ; two of Sphe?totus, 

 two of Cimitaria, one Guerangeria or Nyassa, two of Cypricardella, 

 six Graniinpice, one Pholadella, one Edmondia, two of Nncu,la, four 

 of NuculiteSy five of Pattsoneilo, and one Leda. 



