13 



Studeriote>i viindiilis — cont. Paralciionium elegans — cant. 



The polyps have a dense armature The polyps have minute spicules at 



of spicules, forming a well-defined the base of the tentacles, but there is 



calyx. no calyx. 



The walls of the cup are very massive The walls of the cylindrical lower 



and hard. portion are not thick, and the whole 



is readily compressible. 



The retractile polyparium is very The retractile polypariuin is very 



substantial, including strong muscle- delicate and translucent, 

 bands. 



The larger spindles are very char- The spindles are much smaller, and 



acteristic, being covered with warts in much less warty, 

 thick-set rows. 



It should be noted that Studeriotes mirahilis is much larger than Pund- 

 ciionjam ch'tjam, much more massive, with much larger and coarser spicules, 

 and so on ; but we have reason to believe that the massiveness of architecture 

 is a specific, not a generic character. We saw in Se]jtember in the Zoological 

 Museum in Hamburg a number of unnamed specimens of a form which we 

 believe to be closely related to Studeriotes. By the courtesy of the director, Pro- 

 fessor Kraepelin, and of Dr. Michaelsen, who has charge of the section of the 

 museum containing Alcyonaria and the like, we were able to examine this form, 

 and to compare it with the "Investigator" type. The Hamburg specimens, 

 which were collected off Formosa (Takao), agree with the " Investigator " speci- 

 men in having a reti-actile polyparium, similar polyps, and the same type of huge 

 warty spindle, but they have not the strong massive cup, nor, so far as we have 

 seen, the same development of central dome, or of digitiform lobes. We do 

 not wish to pursue the comparison in the meantime, since Professor Kiikenthal 

 has, we believe, undertaken to describe the unnamed Alcyonarians in the 

 Hamburg Museum. We would, however, express our conclusion that the 

 Hamburg specimens belong, or are closely related, to the genus Studeriotes, 

 which we have established for the " Investigator " type. 



M. Camille Viguier ^ has described and given beautiful figures of a type 

 which he calls Fascicularia, and has proposed to include Paralcyonium along 

 with it in a special family or sub-family, Fascicularinaj. But it is not evident 

 that Finicu-uhirla is really related to Pdralcijoniiim : it consists of groups united 

 by stolons ; the cavities of the polyps are continued, quite distinct from one 



1 Etudes sur les animaux inferieurs de la Bale d' Alger. III. Un nouveau type d'.^nthozoaire 

 {Fascicularia edrcardsi). "Arch. Zool. Exp6r.," ser. 2, vi. (1888), pp. 351-73 (2 pis.). See also H. 

 de Lacaze-Duthiers : Coralliaires du Golfe du Lion. Alcyonaires. " Arch. Zool. Exp6r.," ser. 3, 

 rai. (1900), pp. 353-462 (i pis.). 



