EARLY DEVONIC HISTORY OF NEW YORK AND EASTERN NORTH AMERICA I 25 



or 7 pustules. The length of these shields will average 23 mm with an 

 anterior width of 29 mm. 



The cephala belonging to these pygidia are not completely preserved 

 but indicate a type of simple glabellar lobation as in D. m i c r u r u s, with 

 closely pustulose surface. The border is smooth laterally but in front is 

 extended into a short crenulated snout or shelf as in D. p 1 e u r o p t y x and 

 D. d o 1 b el i though less expanded at the sides than in either of these. 



There is undeniable similarity between this fossil and the I), b i s i g- 

 natus described by me from the Oriskany of Becraft mountain.' The 

 latter, known only from the pygidium, has the part narrower and more 

 elongate and its axial pustules are so arranged as to make a longitudinal 

 median double row. That species we have noted (op. cit^ is allied to 

 D. d e n ta t u s Barrett from the same horizon in Orange county N. Y. but 

 in ignorance of the cephalon of the former, comparison can go no farther. 

 Dalmanites veiti has a type of cephalon quite unlike that of D. 

 d e n t a t u s which is dentate on the entire periphery. 



Locality. This species has been found only in a loose block from the 

 limestone ridge behind Peninsula, Gaspe Basin, in association with D. p h a- 

 coptyx, Phacops logani gaspensis, Platyceras conulus, 

 Anoplia nucleata and other species of the Grande Greve fauna. 



Species name. Samuel Veit, Esq. of Gaspe Basin to whom I am 

 indebted for the striking specimen here illustrated. 



Dalmanites whiteavesi nov. 



Plate 8, figures ii, 13 



This species is represented by a series of small pygidia somewhat of 

 the type of that part in D. anchiops but more particularly like that of 

 D. meeki, figures of which may be found in Walcott's Palaeontology 

 of the Eureka District^ 1884, pi. 17, fig. 5 and Palaeontology of New York, 

 1888, V. 7, pi. II A, fig. 29, 30; that is.rather short and subtriangular but with 

 rounded margins and an extended, slender caudal spine. The axis is mod- 

 erately broad and convex bearing 7 or 8 segments which are well rounded 

 and the pleural ribs are of the same number, flat on top with narrow intervals 

 and each is grooved by a fine line. 



The margins of the shield curve slightly outward uniting behind to 

 form a spine which has about one fourth the length of the shield. It is 

 narrow, ends acutely and is slightly upturned. As a whole the shield is 

 shorter, relatively broader and has more segments than does D. meeki. 

 The latter is from the lower part of the Devonic series in Nevada. 



Locality. Grande Greve. 



Species name. I)r J. I'". Whiteaves, Paleontologist of the Geological 

 Survey of Canada. 



' Mem. 3. N. Y. State Mus. p. 19. ])!. 2, fig. 6-8. 



