GENERAL NOTES. 333 
appears to be the commonest species on our coasts. It has a 
wide range in the southern hemisphere. 
6. Idotea elongata, W/zte—Auckland Islands. 
7. Edotia dilatata, G. WZ. Thomson.—A remarkable form, 
intermediate in many respects between Edotia and /dotea, of 
which one specimen was forwarded to me from Auckland by Mr. 
1. F. Cheéseman. GiiNack, 
ENDOSMOTIC MOVEMENTS IN NITELLA—A beautiful 
example of movements due to endosmosis may be seen in this 
plant by making a section through a stem, so as to leave the 
nodal cells intact, and mounting the preparation in a drop of 
water. At first no motion is visible in any of the cells, but in 
the course of an hour or two the contents of the cells of the 
cortical layer begin to rotate round and round the inside of the 
cell wall. Owing to the size and number of the chlorophyll 
bodies, the movements are very readily seen. At the end of 
about three hours, varying, however. in different cells, the move- 
ments appear to gain their maximum rapidity, the protoplasm 
sometimes making six or eight revolutions round the cell wall 
ina minute: Gradually the rapidity slackens, ceasing altogether 
in the course of about twelve hours, after which the protoplasm 
commences to disintegrate and become discoloured. 
G. M. T. 
NEW ZEALAND BEETLES.—The following new genus and 
new species of New Zealand Beetles were described in Europe 
during the year 1880. 
(t) By E. Reitter, in Verhandlungen des Naturforschenden 
Vereins in Brin. xviii. 
Lyraxis, n.g—Allied to Bryaxis ; head and thorax smooth, 
elytra not striated; antennz thick 10-jointed, joint 11 being 
fused with the preceding. Type: 2. monstrosa, n.s. 
Sagola pulcher, S. notabilis, S. deformipes, S. denticolle, 
S. monstrosa, Epierus rufescens, Soronia occulata, Epistramus 
Sharpi, E. fulvus, Coxelus robustus, C. helmsi, Penthe- 
lispa sulcatissima, Philothermus sanguineus, P. notabilis, 
P. bicavus, Parabrontes picturatus, Micrambina helmsi, M. 
insignis, Holoparamecus tenuis, Corticarina illustris, C. splendens, 
Myrmecoxenus atromaroides, Pedilophorus helmsi, Cis zeeland- 
icus, Ennearthrum beettgeri, E. obsoletum, Tritonidea rubripes. 
(2) By L. W. Schaufuss in Sechzig neue Pselaphiden,—Dres- 
den, Oberblasewitz, 1880. 
Bryaxis ovalipennis, Trichonyx longicollis, T. microcephalus, 
T. brevicollis, T. rotundicollis, T. sordidus. 
(3) By L. Fairmaire in Ann. Sac. Ent. France (5) x. 
Luciola spectralis. 
STALK-EYED CRUSTACEA OF N, Z,—With regard to the lists 
