104 



tundus, and, 2. Ap. ellipticus. ii. Encrinites, the true 

 lily-shaped animal, of which Mr. Miller knows but of one 

 species, I. Enc. moniliformis, iii. /^e?^^«crm^Ye5, five-angled 

 lily-shaped animals, comprising five species, 1 . Pent, caput 

 medusce. 2. Pent, briarceus. 3. Pent, subangularis. 4. Pent, 

 basaltiformis. 5. Pent, tuber culatus. 



II. Semiarticulata, in which the plate-like joints, 

 which form the cup containing the viscera, articulate 

 imperfectly with each other, furnish but one genus, i. 

 Poteriocrinites, a vase-like lily-shaped animal, one species 

 of which only, 1. Pot. crassus^ will serve as the type of the 

 generic character ; the other species, 2. tenuis, having its 

 plates adhere only by sutures and not by articulations, 

 may be considered as forming the transition to the next 

 division. 



III. Inarticulata, in which the plates adhere by 

 sutures, lined by muscular integument. These are divided 

 into, I. Platycrinites, broad-plated, lily-shaped animals, in 

 which five broad plate-like scapulae proceed from a saucer- 

 shaped pelvis, formed of three unequal pieces. The species 

 are, 1. IcEvis ; 2. rugosus ; 3. tuber culatus ; 4i. granulatus ; 

 5. striatus ; 6. pentangidaris. ii. Cyathocrinites^ cup-like 

 lily-shaped animals, with a saucer-shaped pelvis of five 

 pieces, on which are placed, in successive series, five costal 

 plates, five scapulae, and an intervening plate ; from each 

 scapula proceeds one arm having two hands. Sp. \. planus ; 

 2. tuber culatus ; 3. rugosus; 4. quinquangularis. iii. Ac- 

 tynocrinites, radiated, lily-shaped animals ; the pelvis formed 

 of three plates, on which five first costals and one irregular 

 costal adhere ; succeeded by second costals and intercostals, 

 and the scapulae, from whence five arms proceed, each 

 forming two hands, with several tentaculated fingers. Sp. 1. 

 Triaconta dactylus ; 2. polydactylus ; "^.Icevis. iv. Rhodo- 

 crinites, rose-like, lily-shaped animals, pelvis formed of 

 three pieces supporting five square plates, in the spaces of 



