Botany and Zoology. 125 
If. Asracipea.—_Arctus vitiensis; Astacus leniusculus, Astacoides 
nobilis, Paranephrops tenuicornis. 
Ii. Caripga.--Crangon munitus ; cron ab Linea © Nika 
pcan me strenuus, A. pacificus, A. e irus, A. obeso- 
anus, A. crinitus, A. mitis, A. paaieniane ayer pine -rostris, A. tri- 
dentulatus, A. dopidonn A. ‘pugnax, A. diadema, A. malleator; Betzous 
truncatus - equimanus, B. scabri- digit ; Hippolyte acuminatus, 
H. exilirostratus, H. obliquimanus, H. brevirostris, Hinlemelioasaine 
Pandalus 2 ees Pontonia tridacnz ;" fe 
gramineu ; Harpilius lutescens; Anchistia gracilis, A. longimana, a 
Getfeten A aurantiaca 5 Paleemonella tenuipes, P. orientalis ; Paleem 
debilis, P. exilimanus, P. concinnus, P. lanceifrons, P. acutirostris, P. 
equidens ; res spinuloso-manus ; Regulus lucidus, R. crinitus. 
IV. Panz £A.—Penzeus carinatus, P. avirostris, P. velutinus, P. ten- 
uis, P, gindiling Stenopus ensiferus ; a australis. 
“Mr. 
although but the beginning, lays well the foundation of the science, 
and carries far forward its superstructure. Mr. Darwin recognizes the 
fact that the Cirripeds are Crustacean in structure. He divides them 
the Lepadide or pedunculated Ciepene” the second Feraciay Saati 
~ the genus Verruca or Ped and thi rd, the Balanide ese la 
hese organs in the Lepadidz. The nervous system of the Lepas fas- 
cecularis consists anteriorly of two large ganglia, (called supracesopha- 
geal by Mr. Darwin) and a chain of thoracic ganglia united by two 
Chords between each. From each of the anterior ganglia, there is a 
mahi ee to the peduncle, and more interiorly another nerve, which 
extends t @ Spot on the median line o 
the Re ag of two united eyes pies. two distinct lenses. In each of 
ioe ophthalmic nerves there is a ganglion a short distance posterior to 
oe hotholo Ie duncle appears to be well mee out. The 
Young animal Am ag itself by oF anes antenne when the last 
