I 1 8 NEW YORK STATE MUSEUM 



a convex slope above. They are themselves covered with fine concentric 

 elevated lines. The annuli appear to extend to the tip of the shell. 



Locality. Abundant at Perce Rock. 



Species name. Chrestien LeClercq, Recollet Missioner at Perce 1675 

 and author of the Nouvelle Relation de la Gaspesie. 



Tentaculites elongatus Hall 



Plate 12, figures 8, 9 



Tentaculites elongatus Hall. Palaeontology of New York. 1859. 3:136, 



pi. 6, fig. 16-21 

 Tentaculites elongatus Clarke. N. Y. State Mus. Mem. 3. 1900. p. 27, 



pi. 3, fig. 8-12 



To this well known species from the Helderberg and Oriskany faunas 

 I assign a series of specimens from the limestones which bear the regular 

 annulations with deep interspaces, the latter strongly and the former faintly 

 marked by fine concentric lines. The Grande Greve specimens however 

 are not so large as those of New York and they appear to taper somewhat 

 more rapidly, but the specimens from Perce have normal dimensions. 



Localities. Grande Gr^ve and Perce Rock. 



TRILOBITA 

 Phacops logani (Hall) Clarke 



Plate 10, figures 1-4, 7-Q 



Phacops logani (Hall) Clarke. N. Y. State. Mus. Mem. 3. 1900. p. 21, pi. i, 



fig- i-s 



cf. Phacops logani Hall. Palaeontology of New York. 1859. 3 •"353, pi- 73, 

 f- 15-25 



The species from the Oriskany of -Becraft Mountain identified by the 

 author with the Helderbergian form Phacops logani Hall, is well rep- 

 resented by the series of small cephala and pygidia found at Perce. There 

 may be some slight distinction between these forms and typical P. logani, 

 but if so it is very refined. The Perce cephala have a low glabella, sparsely 

 tubercled but often quite clearly furrowed. They bear a minute spinule at 

 the genal angles usually so faint as to be seen only on the internal cast ; 

 the internal cast also shows a row of knots along each dorsal furrow ; they 

 are without spine on the neck-ring. The pygidium has 4-5 flat, duplicate 

 pleural ribs and 7-8 axial, the axis being short and blunt with its apex well 

 removed from the margin. 



Locality. Perce Rock ; also in the St Alban beds on Griffon Cove 

 river. 



