INDEX 



To names of Classes, Orders, Sub-Orders, aud Genera ; and to technical terms. 



Ahyla, 56 

 Acanthella, 55 

 Acanthodadium, 29, 5-1 

 Acaulis, 53 

 Acharadria, 53 

 acrocyst, 28, 45 

 Actinogonium, 53 

 actiuula larva, 22 

 adradial canals. 6 

 adradii, 4 (Fig. 7) 

 Ae'jina. 55 

 AefjineUa, 33, 55 

 Aegineta, 33, 55 

 Aeginidae, 55 

 Aeginodiscus, 55 

 Aeginodoms, 55 

 Aeginnpsis, 35, 55 

 Aeginorlwdus, 55 

 Aeginura, 34, 55 

 Aequorea, 24, 54 

 Aequoridae, 54 

 Aga/iiKi, 47, 56 

 Agalmidae, 56 

 Agahaopsis, 39, 40, 56 

 Aglaisiiia, 56 

 Aglantha, 30, 32, 55 

 Aglaoplienia, 23-25 (Fig. 



31), 27, 28 (Fig. 37), 



29, 54 

 Aglaojilieniidae, 54 

 Ag/nura, 32, 55 

 Aglauridae, 55 

 Aglauropsis, 55 

 Agliscra, 55 

 Allopora, 35-37 (Fig. 43«), 



38, 55 

 Alophota, 57 

 alternation of generations, 



18 

 Amaltlmea, 16, 52 

 Ametrangia, 54 

 Amphicaryon, 56 

 AmiJhicodoii, 52 

 Amphineina, 52 

 Amphirrhoa, 56 



ampullae (medusoid), 36, 



38 

 Angela, 57 

 Angelopsis, 57 

 Anisicola, 23 

 Antennidaria, 55 

 Anthemodes, 56 

 Anthomedusae, 11-22, 52 

 Anthiiplujsa, 56 

 Autliophysidae, 56 

 Apolemia, 39, 45, 56 

 Apolemiidae, 56 

 Apolemopisis, 56 

 Archirhiza, 76 

 Arethusa, 57 

 Armenista, 56 

 Astylus, 37, 38 (Fig. 43rt), 



55 

 Atkoralia, 56 

 Athoria, 40, 45, 56 

 Atlioriidae, 56 

 Athorybia, 56 

 Atolla, 75 

 Atradylis, 53 

 Auialia, 57 

 Anrdia, 6 (Fig. 76is), 9 



(Fig. 106), 61, 67, 70, 76 

 Auricoma, 76 

 Auronectae, 56 

 aurophore, 42 

 Ai'rophysa, 57 

 yl ;</•(/««, 72, 76 

 Azygoplon, 54 



Bassia, 56 

 Bathycodon, 52 

 Bathyphysa, 56 

 Berenice, 26, 54 

 Bimeria, 53 

 blastocoele, 22 

 blastostyle, 14 

 blastula, 2, 22 

 Boiu/ainvillea, 11-14 (Fig. 



19), 16-19, 20, 53 

 Bongainvillidae, 53 



brachial canal, 73 

 Bradiiolophiis, 76 

 bract, 40 



budding of hydroid, 3, 4 

 — of medusoid, 17-19 



Ccdamphora, 54 

 CaUcarpa, 55 

 Calicarpidae, 55 

 Callitlara, 16, 52 

 C'cdpe, 56 



ColycelUu 23, 28, 54 

 Calyconeq^ae, 56 

 Calj'ptoblastea, 53 

 Campaniclava, 53 

 Campanopsis, 23 

 Campanularia, 23, 27, 29, 



54 

 Camp.anularidae, 54 

 Campamdina, 26, 27, 54 

 Cannophysa, 57 

 Caniiodiiza, 71-73, 76 

 Caunostomae, 75 

 Cannota, 54 

 Caunotidae, 54 

 Ccpria, 75 

 Capriidae, 75 

 Caravella, 57 



Cannarina. See Geryonia 

 Car maris, 55 

 Cassiopeja, 76 

 Catahlenia, 52 

 centradenia, 42 

 centripetal canals, 32 

 Cephea, 76 

 Ceratella, 13, 53 

 Ceratelladae, 53 

 Charyhdiieii, 61, 65, 66. 75 

 Charybik'idaf, 75 

 Chirodropidae, 75 

 Chirodropu.% 65, 66, 75 

 Chiropsahniis, 75 

 Chrysaora, 67 (Fiir. 6), 68, 



71. 74 (Fig. 146), 75, 76 

 Cioniste^, 53 



