154 
CONCORDANCE. 
IV. EchiniDwE ...page 141 
Cidaris papillata 146 
'Echinus spluera 149 
miliaris 161 
Fleiniiigii 164 
lividus 167 
neglectus 172 
Echinocyamus pusillus 175 
Echinarachnius placenta ... 178 
Spatangus purpureus 182 
Brissus lyrifer 187 
Amphidotus cordatus 190 
rose us )94 
V. IIoLOTHUniAD.E ... 197 
Psolus phantapus 203 
Psoliniis brevis 207 
Cucumaria frondosa 209 
pentactes 213 
coiunuinis 217 
fusiformis 219 
hyalina 221 
llyndmanni 225 
fucicola 227 
Ochiiiis brunneus 227 
lacteus 231 
Thyone papillosa 233 
Portlockii 238 
Cbirodota digitata 239 
VI. SiPUNCULIDiE 243 
Syrinx nudus 245 
papillosus 247 
Har\eii 249 
Siphunculus Bernbardus ... 251 
Jobnstoni 254 
Priapulus caudatus 256 
Tbalassenia Neptuni 259 
Ecbiurus vulgaris 263 
Echinida page 2 
Cidaris papillata 2 
Echinus esculentus 3 
miliaris 3 
Flemingii 3 
lividus 4 
Ecbinometra Drobacliensis . 4 
Echinocyamus pusillus 5 
Echinarachnius placenta ... 5 
Spatangus purpureus 6 
Brissiopsis lyrifer 7 
Echinocardium cordatum ... 6 
ovatum 6 
Holothurida 7 
Psolus phantopus 9 
Psolinus brevis 9 
Pentacta frondosa 9 
pentactes 10 
Thyronidium Drummondii. . . 11 
fusiformis 10 
pellucidum 11 
Pentacta llyndmanni 10 
Pentacta frondosa, jun. ... 9 
? Pentacta frondosa, jun. ... 9 
Pentacta lactea 10 
Thyone fusus 7 
Thyronidium Drummondii. . . 11 
Synapta inhaerens 12 
SlPUNCULIDiE 13 
Sipunculus nudus 13 
papillosus 13 
Harveii 13 
Strombi 13 
Jobnstoni 14 
Priapulus caudatus 14 
Thalassema rupium 15 
Ecbiurus oxyurus 15 
II. FORBES’S BRITISH ACALEPHiE. 
Mr. Edward Forbes bas given me tbe following List of British 
AcALEPHiE, about to be published by tbe Ray Society ; “ all the spu- 
rious and incomprehensible species being rejected .’' — March 28, 1848. 
I. CiLIOGRADA. 
Beroe cucumis, 0. Fab Beroe cucumis 
pellucida, E. Forbes new species. 
