275 



LoxoNEMA, sp. indet. 



An imperfect cast of the interior of the shell of a rather large species of 

 this genus. From an exposure ten miles above the mouth of the river. 



Cephalopoda. 

 AcTiNOCEEAS Keewatinense, Whiteaves. 



A cast of the interior of four chambers of a siphuncle, that is appar- 

 ently part of a specimen of this species, the types of which are from the 

 Attawapiskat River. The original description of these types is reprinted 

 on page 246 ante, and two of them are figured on Plate 30, figs. 7 and 8. 



From loose pieces of limestone at or near the mouth of the river. 



Cyrtoceeas, sp. indet. 



A badly preserved cast of the interior of the shell of a small, slender 

 and slightly compressed species of this genus. From an exposure thirty- 

 one miles above the mouth of the river. 



CRUSTACEA. 



Trilobita. 



Bronteus, sp. indet. 



A portion of a diminutive cephalon, and a small and imperfect pygidium, 

 on a small loose piece of limestone at or near the mouth of the river. 



Encrinurus, sp. indet. 



A very small pygidium, about three mm. wide and a little more than 

 two long, with only the inner surface exposed. There are three small 

 circular pits, corresponding to as many small tubercles on the exterior, on 

 each of the pleurae. Also from a small loose piece of limestone picked up 

 at or near the mouth of the river. 



A worn cast of the interior of a pygidium of a species of Encrinurus 

 was found at an exposure thirty-four miles from the mouth of the river. 



A 5. FROM " LIMESTONE RAPID", FAWN RIVER; OR BRANCH 

 OF THE SEVERN. 



Collected by Mr. A. P. Low in 1886. 



The rocks at this locality are described on pages 15F ife 18F of Mr. Low's 

 " Preliminary Report on an Exploration of the Country between Lake 

 Winnipeg and Hudson Bay", published in theAnnual Report of this Survey 

 3 



