ANIMALS. 25 
sogar noch tiefer herab. Die Vertheilung der Querlamellen, deren in der Mitte der 
Lange etwa 24 vorhanden sind, ist nicht ganz regelmassig. In einem durchbrochenen 
Exemplare stehen die vier bis zur Axe laufenden fast im Kreuz, und zwischen ihnen 
fiinf oder sechs klemere, welche auch ziemlich abwechselnd kleiner und grosser sind.”? 
The beautiful specimen figured by Geinitz, and from which the above description 
is taken, is conical, with the lower or poimted end slightly curved: the aperture is 
very deep, occupying the upper half of the specimen, or more: externally it 
is longitudinally striated, and transversely rugose. The plates, of which there are in all 
about twenty-four, vary inlength: there are four long plates dividing the Coral into as 
many compartments, each of which contains five or six short ones. The specimen 
measures about an inch and a half in length. 
The specimen represented in Plate III, fig. 2, is a broken cast: but I am 
enabled to make out some characters in addition to those given by Geinitz. The 
original was of a conical form; slightly curved; with a deep cup, longitudinally 
furrowed on its inner surface; and several longitudinal plates of two lengths: the 
longest, about five in number, reached half way to the centre; the shortest are placed 
between the others, in sets of from one to four, making in all about sixteen plates. 
The cast shows, by means of a magnifier, that the lamellar mterspaces were each 
furnished with two very finely-denticulated, slightly prominent ridges; but I have not 
been able to satisfy myself of the existence of marginal denticles on the plates. 
The Coral called by Count Minster Anthophyllum venustum, from the St. Kassian beds, 
offers a close resemblance to it. 
Petraia profundais a rare species. 1 have only succeeded in procuring two or three 
specimens from the Shelly Magnesian Limestone at Humbleton Quarry. Geinitz states 
its having been found in the lower Zechstein at Eisleben, Ilmenau, Gerbstedt, and 
between Hettstadt and Leimbach. 
Sub-order ALCYONARIA, Audouin and Milne Edwards, 1836. 
Zoocoratiia Ocractinpa, Lhrenberg. 
Zooruytaria, Blainville. 
Les Atcyontmns, Audouin and Milne Edwards. 
ZOOPHYTA ASTEROIDA, Johnston. 
The members of this order have several representatives on the coasts of Britain ; 
but only one or two kinds, the Alcyonias (Dead Man’s Hands), and Pennatulas (Sea-pens) 
are anywhere common: some others, as Gorgonias (Sea-fans) and Primnoas (Sea- 
shrubs), are but rarely met with; while the remainder, as the Tubiporas (Music-coral), 
Coralliums (Red Coral), and some others, are only to be found in foreign seas. 
In the Alcyonarias, the body is usually of a cylindrical form; the mouth is 
1 Versteinerungen, p. 17. 
d 
