278 bulletin: museum of comparative zoology. 



Cranidium a little more than twice as wide as long, smooth, gently and 

 evenly convex. Glabella very large, depressed convex, with large lateral 

 lobes strongly suggestive of Amphilichas. The outhne of the whole glabella 

 is roughly circular, the width being a little greater than the length of the 

 glabella and neck-ring. The confluent glabellar furrows follow exactly the 

 same course as do those of an Amphilichas, separating large, oval, diagonally 

 placed lateral lobes. The central lobe is narrowest a short distance in front 

 of the neck-furrow, and widest at the front. In front of the glabella the cheek 

 slopes down to a very narrow flattened or concave border which is absent from 

 the sides, where narrow, free cheeks extending back to the genal angles and 

 probably elongated into genal spines were probably present. No evidence of 

 the presence of eyes remains, and it is probable that like the Raphiophoridae 

 these were bUnd trilobites with dorsal facial sutures. The neck-furrow is 

 distinct all across the back of the cephaion, but narrow. The neck-segment 

 is wider near the distal ends than near the axial lobe. 



The thorax has seven narrow segments, the axial lobe being gently convex 

 and the pleural lobes fiat. The axial lobe is rather wide, nearly one third 

 the total width and tapers very little from front to back. On the pleural 

 lobe each segment shows a rather wide, deep, central furrow. 



The pygidimn is short, Ampyx-like, with four rings on the wide axial lobe 

 and three pairs of ribs on the pleural lobes, and is surrounded by a steeply 

 sloping striated border. 



Measurements: — Entire specimen; length, 10 mm., width at genal angles, 

 9 mm.; length cephaion, 4 mm., thorax 4 mm., pygidium 2 mm., width 

 glabella 3.75 mm., wdth axial lobe at front of thorax 2.5 mm., at front of 

 pygidium 2 mm., width pygidium at front 6.5 mm. Largest cranidium, length 

 9 mm., width 15 mm., width glabella 8 mm., length glabella 7.5 mm. 



This species is very like E. meeki, and I should not have been able 

 to separate the two had not specimens of both been before me. In 

 E. schucherti the glabella is more nearly circular in outline, broader, 

 and flatter than in E. meeki, and the median tubercle is fainter and 

 farther forward, so faint in fact as to be invisible on most specimens. 

 In E. meeki there is a strongly striated abruptly sloping border in 

 front of the glabella while in E. schucherti the corresponding portion 

 is a smooth "roll" sloping down to a narrow concave border. 



Horizon and Locality: — Professors Schuchert and Twenhofel 

 collected twelve specimens, three of them entire, from the limestones 

 of Division N, (Normanskill) at Table Head, Newfoundland. Billings 

 referred to this form as occurring abundantly in Division N at Table 

 Head and the west side of Pistolet Bay, also in Division P, four miles 

 northeast from Portland Creek, Newfoundland. The types are in 

 the Yale Universitv Museum. Named for Prof. Charles Schuchert. 



