TRIBE I. ASTR^EACEA. 133 



Exterior smooth, base very much dilated (to 2 inches in breadth), 

 and deeply lobed with the margin finely pustulate in a single line; 

 above, nearly cylindrical and an inch thick, with the disk scarcely 

 broader; upper margin uniseriately tuberculate; tentacles short 

 (3 to 4 lines), subequal, subulate, rather stout, crowdedly in 3 

 series ; mouth a 1 little prominent, circular : form of contracted ani- 

 mal a very low cone. 



Plate 2, fig. 10, animal natural size; a, disk and tentacles; b, the 

 same, contracted. 



False Bay, Porto Praya, island of St. Jago, Cape de Verdes, in 

 crevices along the rocky shores. Exp. Exp. 



The base of this species is deeply divided into about 1 lobes, and 

 on the outer margin of each, there is a range of minute tubercles. 

 The colour of the exterior is a light green, delicately lined vertically 

 with straw colour ; tentacles light yellowish green ; disk greenish and 

 finely radiated with light yellow ; the prominent mouth bright blue, 

 with white around the opening. The tubercles of the upper margin 

 are much smaller than in the A. lobelia. J. P. COUTHOUY. 



ACTINIA DIADEMA. (Dray ton.} 



A. sparsim verrucosa, basi dilatata (1|"), et late kbata ; supra, cylin- 

 drica, 1" crassa, disco non latiore, margine superno uniseriatim tuber- 

 culato ; tuberculis prominentibus ; tentaculis brevibus (3-4'"), subce- 

 quis, subulatis, subvalidis, confertim 4-seriatis ; ore scepe elevato : 

 contractd, alto-hemisphericd. 



Body covered with scattered verrucse ; base a little dilated (1J inches 

 in breadth) and broad lobed; above, cylindrical, an inch thick 

 and the disk not broader; superior margin, with a single series of 

 prominent tubercles; tentacles short (3 to 4 lines), subequal, subu- 

 late, rather stout, crowdedly in 4 series; mouth often much ele- 

 vated : form of animal when contracted a prolonged hemisphere. 



Plate 2, fig. 11, animal expanded, natural size; a, a view of the 

 disk and prominent mouth ; 5, the animal contracted. 



34 



