17 i coNrATi.'i.inAE. 



sible during a short visit to the Museum. For this act of 

 liberality on the part of the Director , Dr. Schlegel , I would 

 here express my heartiest thanks. 



Besides Antedon rosacea and Ant. Eschrichtii of ih.e Euro- 

 pean seas, the collection includes ten species of Antedon 

 from the Eastern seas. Two of these, Ant. elongata , and 

 Ant. flagellata are the original types of Müllerian species ; 

 while a third belongs to Ant. carinata Lam. sp., the types 

 of which are at Paris and Berlin. The remaining seven 

 species are new, though they present but little variety of 

 type. Four of them have only ten arms , and the other six 

 all belong to one simple type in which the rays divide 

 three or four times, each division consisting of two joints, 

 the axillary without a syzygy. 



The genus Actinometra is represented by a type speci- 

 men of Act. salaris Mull, which seems to have been sub- 

 sequently described and figured as Comatula hamata by 

 Kuhl and van Hasselt '). There are also nine other species 

 including the types of C. timorensis, C. japonica, C. No- 

 vae Guineae and C. Bennetti all of which , except the last , 

 are now referred to the genus Actinometra for the first 

 time. Simple ten-armed forms with the two outer radials 

 not united by syzygy as they are in Act. salaris, are con- 

 spicuous by their absence , as is usual among the Actino- 

 metrae of the Eastern Seas; but in every type the rays 

 divide more than once and the first division consists of three 

 joints, the axillary with a syzygy. In two of the nine 

 species there is no further division of the rays , while the 

 remaining seven fall into two groups. "In the one group 

 which includes but two species, the second and subsequent 

 ray-divisions consist of two joints only which are united 

 by a syzygy, as are also the second and third radials: 

 while in four of the five remaining species the second and 



1) Iferklots, J. A., Echinodormcs peiutes d'après nature par les soins Je Kuhl , 

 van Hasselt et Sal. Muller (1868), Arastenlani. Bijdrage tot de Dierkunde, 

 IX, 18G9, p. 10, Pi. IX. 



ISToles li'om the I^oyclen TVIiiseuiii, Vol. III. 



