ALPHABETICAL INDEX 



TO THE GENERA AND SPECIES IN PART I. 



N.B. The names of Genera are printed in Italics; those of species in Roman. 



Abbensis, 67. 

 abietina, 22. 

 acanthifera, 131. 

 Acanthonotus, 142. 

 Acasta, 172. 

 Achceus, 165. 

 Actinia, 29. 

 aculeata, 106. 

 acuminata, 137. 

 acuminifera, 131. 

 acuta, 129. 

 acutifrons, 131. 

 Adamsia, 27. 

 Adelosina, 14. 

 jEga, 134. 

 aegagropila, 5. 

 Aepus, 180. 

 JEquorea, 47. 

 aeronautica, 45. 

 affinis, 150. 

 agglomerata, 35. 

 alata, 124. 

 Alauna, 143. 

 alba, 29, 100, 129. 

 albescens, 4. 

 albida, 30, 64. 

 albifrons, 136. 

 albo-maculata, 129. 

 album, 81. 

 albus, 142. 

 Alcinoe, 52. 

 Alcippe, 174. 

 Alcyonium, 35. 

 Alderia, 47. 

 Alderi, 5. 

 Allmanni, 28. 

 Atpheus, 150. 

 Alteutha, 127. 

 alveolata, 92. 

 amcena, 93. 

 Amphidotus, 70. 

 Amphilhoe, 141. 

 anatifera, 174. 



anceps, 36. 

 Anceus, 135. 

 Anchorella, 121. 

 Anelasma, 174. 

 Anglicum, 173. 

 anguicoma, 28. 

 angulata, 59. 

 angustata, 129. 

 Anomalocera, 127. 

 Anonyx, 142. 

 annulicornis, 148. 

 annulus, 95. 

 antennina, 24. 

 Antennularia, 24. 

 Anthea, 26. 

 Anthosoma, 123. 

 Anthura, 138. 

 antiquata, 129. 

 Aphrodita. 



appendiculata, 44, 137. 

 Apseudes, 136. 

 araneus, 163. 

 Arachnactis, 30. 

 areolata, 4. 

 arcta, 23. 

 arctica, 20. 

 Arcturus, 138. 

 arcuatus, 160. 

 arenaria, 91. 

 arenarius, 142. 

 Arenicola, 97. 

 arenosa, 143. 

 argentea, 22. 

 armatum, 81. 

 armillaris, 102. 

 Arpacticus, 127. 

 Artemia, 129. 

 articulata, 24. 

 articulosa, 141. 

 ascidicola, 126. 

 asellina, 122. 

 aspera, 162. 

 astaci, 123. 



Astemma, 81. 

 Asterina, 66. 

 Asterias, 67. 

 Astrophyton, 65. 

 Atelecyclus, 158. 

 Athanas, 149. 

 atomata, 80. 

 Audouinii, 143. 

 aurantia, 127. 

 aurantiaca, 67. 

 aurata, 43. 

 aurea, 5. 

 auricula, 32. 

 aurita, 48, 174. 

 aurora, 28. 

 Axius, 152. 



Bairdii, 44, 91. 

 Balanophyllea, 33. 

 Balanus, 172. 

 Ballii, 64. 

 balanoides, 172. 

 Baltica, 108. 

 Barleii, 149. 

 Beanii, 21. 

 Beccarii, 12. 

 Belgica, 91. 

 bellis, 28, 64. 

 Bernhardus, 74, 154. 

 Beroe, 51. 

 bicarinata, 134. 

 bicolor, 124. 

 bicornis, 14. 

 bidentata, 135. 

 bilineata, 101, 102. 

 bioculata, 82. 

 bipes, 130. 

 bipunctata, 106. 

 bispinosus, 151. 

 blondina, 43. 

 boa, 104. 

 Bodotria, 143. 



