ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
349 
Luidia paucispina[is ] sp. n., 1ms only five arms ; Pentagonaster 
hystricis is, among other points, distinguished from P. granularis by the 
possession of pedicellariie. Asteropsis capreensis of Gasco is shown to 
be a Marginaster. Eighty-tliree examples of Echinus norwegicus were 
taken. Pseudostichopus occultatus was taken at a number of stations. 
The form of the calcareous ring and its joints is used to arrange the 
decachirote Elpidiinse, thus : 
(A) Joints more or less closely connected. 
(a) All arms and joints undivided — Elpidia glacialis , Irpa. 
( b ) The arms of the anterior cross divided — Kolga. 
(B) Joints not connected. 
(a) All arms of the joints undivided — Scotoplanes. 
( h ) (?) All arms divided — Elpidia (except E. glacialis ), Par- 
elpidia , Peniagone , and ? Scotoanassa. 
Echinoderms of the Bay of Aniboyna.* — M. P. de Loriol has an 
interesting notice of the specimens collected by MM. Pictet and Bedot ; 
perhaps the most important form found was Asthenosoma varium which 
came from comparatively shallow water, and the young of which, if cor- 
rectly determined, have a test that is not at all elastic. Ophiopezella 
luetlceni is a new species which tends to show that Ophiopezella is a good 
genus. Ophiactis Brocki is allied to 0. modesta from the same locality ; 
but reasons are given for distinguishing it. Ophiocnida Picteti is 
described from a single specimen. Ophiothrix Bedoti and 0 . Picteti swell 
the list of species of this genus. An account of the Crinoids is promised 
later. 
Ophiuroids of Mauritius.f — M. Paul de Loriol devotes the third 
part of his “ Catalogue raisonne ” of the Echinoderms of this island to 
the Ophiuroids. He finds 29 species, 12 of which are here described for 
the first time. It is considered that Ljungman’s genus Ophiopezella 
should be retained, and a new species 0. duhiosa is placed in it. Twelve 
specimens show that the specific characteristics of Pectinura venusta 
sp. n. are very constant ; it stands nearest P. ramsayi. Ophiarachna 
has two new species, 0. Bohillardi, named in honour of the deceased 
collector, on whom M. de Loriol depended for his specimens, and 
0. mauritiensis, which is near 0. incrassata. In Ophiarthrum lymani 
sp. n. we have the third species of this genus. A comparatively large 
number of new species are added to the already more than unwieldy 
Ophiothrix ; these are called mauritiensis , Bohillardi , lepidus , fallax , pic- 
turatus, and tristis ; Robillard is again commemorated in Ophiomyxa. 
The only Crinoid M. de Loriol knows from Mauritius is Antedon 
carinata , which is already known to have an exceedingly wide range. 
Rhizocrinus Santagatai.J — Sig. G. Capellini has made a careful 
study of this form, which Meneghini included among the Crinoids, and 
in regard to which there has been some controversy. He has convinced 
himself that it is identical with the Foraminifer Bathysiphon jiliformis 
Sars, as Andrese maintained, and with B. taurinensis Sacco. 
* Rev. Suisse Zool., i. (1893) pp. 359-426 (3 pis.). 
t Mem. Soc. Phys. Genev., xxxii. I. No. 3 (1894) 64 pp., 3 pis. 
J Atti R. Accad. Lincei (Rend.), 1894, pp. 211-8. 
