144 Mr. H. J. Carter on Specimens 



Obs. The spike supported on three arms diadem-like and 

 uniformly distributed over the surface is the characteristic 

 feature of this species. There is a small specimen of it 

 in the British Museum, about 6-12ths inch in diameter, 

 which came from the neighbourhood of Kendrick Island, south 

 of Japan (lat. 24° 13' N., and long. 136° 13' E.), presented 

 by Dr. J. Gwyn Jeffreys. 



Corallistes verrucosa , n. sp. 

 (PI. VII. fig. 46, a, b.) 



Surface characterized by the presence of short, tuberose 

 cones (PL VII. fig. 46), which, when the structure is torn to 

 pieces, are respectively found to be supported on three arms 

 tubercled and repeatedly subdivided into branches until they 

 end in a filigree consisting of minute angular processes which 

 interlock with those of the neighbouring spicules (fig. 46, a). 

 Cone consisting of a pyramidal heap of tubercles about 

 1 -666th inch high and 1 -750th inch in diameter at the base 

 (fig. 46, a) , which is triangular and, for the most part, com- 

 posed of three tubercles larger than the rest, triangularly 

 placed and situated respectively opposite the reentering angles 

 between the arms (fig. 46, b). Internal structure composed of 

 spicules of the usual lithistid form consisting of four arms, each 

 of which is repeatedly divided and subdivided into branches 

 until they end like the one above mentioned. Size of speci- 

 men about | inch in horizontal diameter. 



Hab. Marine. On hard objects. 



Loc. Gulf of Manaar. 



Obs. There is nothing particular about this species beyond 

 the form of the surface-processes, which, at the same time that 

 they present a distinguishing feature, afford the only remark- 

 able difference between it and C. aculeata. 



Corallistes elegantissima, n. sp. 

 (PI. VII. fig. 47.) 



The spicules of this species (if it is a distinct one) were 

 only found in microscopic groups in two places on the same 

 nodule as Discodermia px^piH^O' (which will presently be de- 

 scribed), where they were chiefly in the midst of, and thus 

 protected by, the acerate spicules of a species of Reniera 

 that had overgrown them. To describe a Lithistid spicule 

 where there is no particular character is, from its intricate- 

 ness, almost impossible ; therefore I must refer the reader to 

 the illustration, which is a careful drawing to measurement of 

 one of these elegantly beautiful objects, merely adding that 



