708 



INDEX 



atlanticum (Pyrosoma), 



671. 



Atlantidae, 552. 

 Atoke, 283. 

 atra (Ascidia) , 667. 

 atrica (Zilla), 426. 

 atropos (Moira), 645. 

 Attidae, 434. 

 Attus, 434. 



audax (Phidippus), 435. 

 audebarti (Glottidia), 267. 

 audonini (Pachylomerus), 



416. 



Aulactinia, 143. 

 aurantia (Argiope), 425. 

 aurantiaca ( Parapolia ) , 



207. 

 aurantiacus (Balanoglos- 



sus), 654. 



aurata (Micaria), 430. 

 Aurelia, 130. 



aurelia (Paramecium), 56. 

 aureus (Volvox), 39. 

 Auricles, in Ctenophora, 



152 ; in Planaria, 165 ; in 



Rotifera, 237. 



auricula (Haliclystus), 127. 

 Auricularia, 614, 647. 

 auricularia (Lymnaea), 510. 

 Auriculidae, 508. 

 auriformis (Polygyra), 521. 

 aurita (Aurelia), 131. 

 Autolytus, 287. 

 Autozooids, 137. 

 autumnalis (Erigone), 423. 

 avara (Columbella), 557. 

 avara (Succinea), 519. 

 Aviculariidae, 416. 

 Avicularium, 249. 

 Aviculidae, 573. 

 avida (Lycosa), 433. 

 Axial organ, 617. 

 Axial sinus, 617. 

 Azygia, 185. 

 Azygobranchiata, 532. 



BABESIA, 47. 



bachei (Nemopsis), 98. 



bachei (Pleurobrachia), 



152. 



bairdi (Octopus), 613. 

 bakeri (Brachionus), 240. 

 Balanidae, 361. 

 Balanoglossida, 653. 

 Balanoglossus, 654. 

 balanoides (Balanus), 361. 

 Balantidium, 59. 

 Balanus, 361. 



balbianii (Spirocheta), 26. 

 baltica (Idothea), 376. 

 baltica (Macoma), 598. 

 bancrofti (Filaria), 219. 



banksi (Onychoteuthis), 



611. 

 barbadensis (Fissurella), 



531. 



Barnacle, 360. 

 bartoni (Cambarus), 391. 

 batrami (Ommatrephes), 



610. 



Basals, 619. 

 Basket fish, 638. 

 Basommatophora, 507. 

 Bdella, 453. 

 Bdellidae, 453. 

 Bdellodrilus, 306. 

 Bdelloida, 234. 

 Bdellonemertea, 213. 

 Bdelloura, 168. 

 Bdellouridae, 167. 

 Beach fleas, 366. 

 Beef tapeworm, 200. 

 Beetle mites, 442. 

 Bela, 562. 

 Belemnitidae, 607. 

 benedeni (Tubifex), 310. 

 benneti (Amaurobius), 418. 

 Beroe, 154. 

 Beroidae, 154. 

 beroidea (Tintinnopsis),60. 

 Bertia, 198. 

 berfjlinus (Asteracanthion) , 



631. 

 beumeri (Mesenchytraeus), 



308. 



bicarinata (Valvata), 545. 

 bicarinatus ( Planorbis ) , 



512. 



Bicellaria, 253. 

 Bicellariidae, 253. 

 Bicidium, 142. 

 bicolor (Lineus), 208. 

 bicophora (Clytia), 114. 

 Ucornis (Rattulus), 241. 

 bicuspidatus (Cyclops), 346. 

 bidentata ( Ophiacantha ) , 



637. 



bifaria (Oxytricha), 63. 

 biflda (Doris), 502. 

 Bifidaria, 516. 

 bigemina (Babesia), 47. 

 bilamellata ( Onchidoris ) , 



502. 

 bilimbosum (Cochliopo- 



dium), 18. 



Mmaculata (Hahnia), 431. 

 bimaculatus (Tetranychus), 



455. 

 biminiensis (Ptychodera), 



654. 



Biomyxa, 19. 

 Bipaliidae, 168. 

 bipartita (Diphyes), 125. 

 Bipectinate gill, 529. 



bipes (Nebalia), 364. 

 Bipinnaria, 614, 625. 

 Bird mites, 440, 444. 

 Bird spiders, 416. 

 Birgus latro, 393. 

 biseriatum (Chelifer), 409. 

 bisuturalis (Odostomia), 



554. 



Bittium, 546. 

 Bivalvia, 481, 567. 

 Black abalone, 532. 

 Black corals, 139. 

 Black sand shell, 580. 

 Bladder worms, 156, 191. 

 Blastostyle, 104. 

 blattarum (Gregarina), 44. 

 Blepharisma, 58. 

 Blood clams, 571. 

 Blood worms, 296. 

 Blue crab, 398. 

 Blue-foot, 584. 

 Bodo, 29. 

 Bodonidae, 29. 

 Bolina, 153. 

 Bolinopsidae, 153. 

 Bolinopsis, 153. 

 Boltenia, 667. 

 bombi (Sphserularia), 217. 

 Book scorpion, 409. 

 Boophilus, 446. 

 Bopyridae, 381. 

 Bopyroides, 381. 

 borealis (Cancer), 396. 

 borealis (Cerianthus), 141. 

 borealis (Pennatula), 137. 

 borealis (Solemya), 569. 

 borealis (Spirorbis), 302. 

 borealis Steatoda), 421. 

 borealis ( Venericardia ) , 



577. 



boreas (Crangon), 386. 

 boreus (Vejovis), 405. 

 Bosmina, 336. 

 Bosminidae, 336. 

 bostoniensis (Flabellina), 



504. 



Bostrichobranchus, 665. 

 Bothriocephaloidea, 193. 

 Bothriocephalus, 195. 

 Bothriocephalus, 194. 

 Bothrioneurum, 311. 

 Bothrium, 189. 

 Botryllidae, 668. 

 Botrylloides, 669. 

 Botryllus, 669. 

 botryoides ( Leucosolenia) , 



75. 



botrytis (Codonosiga), 29. 

 Bougainvillia, 97. 

 Bougainvilliidae, 96. 

 Bourgueticrinidae, 621. 

 bovis (Demodex), 439. 



