'20(t AcrrxoMCTR.v parvicirra. 



name of Actinometra pohjmorpha ^). Both in the Vavao 

 specimen and in the small ones obtained by Peron and 

 Lesueur the arm joints overlap much more strongly than 

 they do in the Philippine examples, the distal edges of 

 the successive joints being much more raised. This is also 

 the case with the original specimens of C. timoremis in 

 the Leyden Museum. Müller's description of them gives 

 no information either about the position of the mouth, or 

 about the presence of a terminal comb on the oral pinn- 

 ules , and is therefore of no use for determining their 

 generic position; and there are other species to which the 

 description that he does give is almost as applicable as to 

 C. timorensis. 



The chief point of difference between the three Timor 

 specimens and those from the Philippines is that in 

 some of the former the overlap of the arm-joints is much 

 more marked. In one individual indeed it almost ceases 

 to be an overlap and shows the first trace of a carina- 

 tion. The dorsal surface of each joint, instead of sloping 

 gradually upwards and outwards, rises very suddenly to- 

 wards its distal edge which stands up sharply above the 

 proximal edge of the next joint. 



The distichal and palmar pinnules of the Timor speci- 

 mens are more equal than in the Phillippine ones and 

 their terminal comb is smaller, while the outer pinnules 

 of the ungrooved arms are smaller and less fleshy, and 

 bear none of the problematical » sense organs?" which are 

 present in the corresponding pinnules of some of the Phil- 

 ippine individuals. 



On the other hand the examples from the two locali- 

 ties agree , not only in their general external appearance , 

 but also in their internal characters. Sections which I 

 have made through one or two pinnules of the Timor spec- 



1) Trans. Linn. Soc, Ser. 2. Zool. II. pp. 31—53. I Inve not tliouglit it 



necessary to reproduce ray diagnosis in these Notes, but confint'. myself to 



simply stating the general points of resemblance and difference between the 

 Philippine and Timor S2)ecimen3 respectively. 



.N'ote^i tVo 111 the Lieydeii Maseii'n, Vol. III. 



