146 
THE GEOLOGIST. 
can still follow the pattern traced on the surface of the bottom by 
cracks and chasms, similar to those into which the dry portion of Thing- 
valla has been shivered. 
1. flain i,t Tiiinavallii. J. Lake. 3. La\a Plateau. 4. Alraaiina Gja. 5. Uabiia tija 
(^To be continued.) 
ON SOME Is'E\7 PALiEOZOIC CllINOIDS FEOM ENGLAND 
AND SCOTLAND.* 
By Peofessok L. db Koninck, of Liege. 
{From ilie ^'Bullet. Acad. Roy. Bruxelles," 2 Ser. tome IV. p. 93.) 
The cricoids, which in this paper I bring under notice, belong to two 
new genera, wliich I have designated, the one by the name of JTi/drei- 
onocrinm ({iSpefov, a watering-pot), from the resemblance to the rose of 
a watering-pot of the head of the species referred to, and the other 
by the name of Pisocrinus {ma-ov, a pea). I begin with the exposition 
of the character* of these new genera, and will afterwards describe the 
species which belong to them, and in doing this I shall make use of 
* Cumiimiiicated Iiy (lie autlioi-. 1 he jilatc accompaiiyiug (he original Memoir is here useJ for illiis- 
tnitioH through the kiiidiiess of M. dc Koninck. 
