﻿On Conodonts and Fossil Annelid Jaws. 148 



Bass confined in a tank will never live peaceably together, but fight ; or 

 rather the larger ones drive the smaller ones, until they either kill them 

 or make them jump out of the tank. 



The spawn of Black Bass can not be hatched successfully by artificial 

 means, as can the spawn of "White Fish" and "Pike Perch;" but to 

 obtain young fish for restocking depleted waters, the fry must be obtained 

 by netting them, a very difficult and laborious task. The small Bass fur- 

 nished by the State Fish Commission to the Cuvier Club for distribution 

 in the waters hereabout, cost the State $5.00 per one hundred fish. 



ON CONODONTS AND FOSSIL ANNELID JAWS. 

 By U. P. James. 



Read August 5. 1884. 



Though of great interest to Paleontologists and Zoologists, these minute 

 fossil forms, of which we propose to give a brief account, had received 

 but little attention, and very little was known in regard to them, ten years 

 ago. The fact of their being so long overlooked by collectors of other 

 fossils in the same strata where they are now found together, may be ex- 

 plained by their almost microscopic minuteness and invariably being de- 

 tached, so far as now known, from their original position in the head of 

 the animals to which they belonged. The published researches of Dr. 

 Newberry and Dr. Hinde (referred to below) have stired up an interest in 

 these fossil jaw plates and teeth that is not likely soon to flag, and is sure 

 to lead to further important investigations and discoveries. 



In 1856, Dr. Henrich Pander, of St. Petersburg, Russia, published the 

 first account of Conodonts, which he considered to be the teeth of small 

 sharks, which view has not been accepted, generally, by other Paleontolo- 

 gists. 



Dr. J. S. Newberry ("Pal. of Ohio." Part II., p. 41-44, 1875) says, 

 that Conodonts were found in great numbers in the Cleveland shale of* the 

 Waverly group— subcarboniferous — at Bedford, Cuyahoga Co., O. and 

 that in regard to their Zoological relations it is yet quite impossible to 

 speak with certainty. When first discovered Dr. N. submitted them to 

 Prof. Agassiz, who pronounced them the teeth of Salachians. Prof. Owen 

 (Pal., p. 116) says, that they have most analogy with the spines, kookleta or 

 denticles of naked mollusks or Annelids. Prof. E. S. Morse — as possibly 

 the teeth of naked mollusks, such as Doris, Arolis, etc., and that they 

 bear a strong resemblance to the teeth of mollusks. and might have be- 



