1728 



THE VOYAGE OF H.M.S. CHALLENGER. 



Anfipodi, 205. 



Aufipodos, 231. 



Anisopoda, 256, 260, 2S9, 554. 



Annulosa, a subkingdom in zoology comprising the Arthropoda 

 and Anarthropoda, in which the body is more or less 

 evidently composed of a succession of annuli or rings, 

 91, 478. 



Annulus, a body-ring, segment, or somite, 153, 264. 



Anosteozoaires (ct-, without, bcniov, bone, £u>ov, animal), 94. 



Anostia (a-, without, oareov, bone), 88. 



Antenna; (antenna, in Latin, a sailyard), in a Crustacean the 

 appendages of the (theoretical) second and third 

 segments. The two pairs are distinguished by different 

 writers as respectively first and second, 473; upper and 

 lower, 84, 122, 245; anterior and posterior, 487, 536; 

 posterior and anterior, 64, 149; inner and outer, 78, 

 515; antennules and antenna, 463, 1215; auditory and 

 olfactory (Spence Bate, Brit. Assoc. Rep. forlS75); Milne- 

 Edwards, 154; Spence Bate, 280, 473; Bruzelius, 313; 

 Fritz Miiller, 349 ; Leydig, 349, 480 ; Claus, 487, 597. 



Antenna-form processes, palps of the mandibles, 102. 



Antennary gland, 505, 510, 553. 



Antennules, see Antennae. This diminutive is not well 

 suited to the Amphipoda, seeing that in many species 

 of this group the upper antenna; exceed the lower in 

 size. 



Antennules, applied to parts of the mandibles, maxilla;, and 

 maxillipeds, 57. 



Antens = Antenna;, 99. 



Anterior. By a conventional use, this word is applied to that 

 edge of the leg which, when the limb is extended down- 

 wards, is turned towards the head ; thus in the gnath- 

 opods and first two pairs of perreopods what would 

 naturally be regarded as the back of the hand is called 

 the anterior or front margin, while the clasping edge is 

 called the posterior or hind margin. 



Antliata (avrXea, I drain, in reference to the liauslcllum or 

 sucking apparatus), 41, 65. 



Aorta {aopry, from aeipv, I raise), 338, 372, 476, 489, 505, 

 526. 



Apiropodes (&irtipos, without limit, iro'Sfs, feet), 92. 



Apodeme (ajroSew, I bind fast), 463. 



Appendages, appendices, 153, 463, 563 ; correlation of, 474 ; 

 renewal of, 474. 



Appendiculata, 478. 



Appendix caudalis, the telson, 178. 



Aptera (forrepos, unwinged), 11, 14, 15, IS, 20, 26, 36, 42, 52, 

 53, 55, 58, 62, 65, 69, 86. 



Arteries {aprqpla, originally supposed to be an air-duct, the 

 derivation suggested for the word being aijp, air, rnpiu, 

 I preserve), 338, 476, 487, 505, 526, 527, 549, 598. 



Arthrocephales (&pSpoi>, a joint, K«pa\i], head), 78. 



Arthropoda {&p8pov, a joint, nobs, foot). The Encycl. Brit., 

 vol. ii. 1875, explains that the Class is named from the 

 articulations of the limbs, and also says, "Leach, and 

 later (1825) Latreille, proposed Condylopoda as the 

 name of the group for which Arthropoda was afterwards 

 devised. Custom has overborne the rule of priority, 

 and the latter is now the more common name." 



Latreille, however, employed the term Condylipoda in 

 1S02, and must therefore have preceded Leach, 477, 

 479, 552. 



Arthrostraca 1 (&pQpov, a joint, bmpaKov, shell), proposed by 

 Burmeister in place of the older term Edriophthalma or 

 sessile-eyed. Sars, Hist. Nat. Crust, d'eau douce de 

 Norvege, explains that it refers to the regularly 

 segmented body and the considerable development of 

 the dorsal arch of each segment which seems to repre- 

 sent a sort of separate carapace, of which the lateral 

 portions are often very prominent, covering more or less 

 distinctly the base of the corresponding limbs. As the 

 second order of the Malacostraca, in the classification 

 adopted by Sars, it includes the Amphipoda and Isopoda, 

 the first order, the Thoracostraca, embracing the Deca- 

 poda, Stomatopoda, and Cumacea, 169, 477, 508, 552, 

 601, 1655. 



Articulata, "the name given by Cuvier to his third great 

 division of the Animal kingdom. Arthropoda is the 

 designation now generally adopted, which includes the 

 Crustacea, Araehnida, Myriapoda, and Insecta, but ex- 

 cludes the Annelida, which Cuvier classed with these 

 among the Articulata" (Encycl. Brit., vol. ii. 1875), 

 101. 



Articulation, used by Bate and AVestwood, Brit. Sess. Crust., 

 vol. i. p. 6, to express the connecting hinge, as dis- 

 tinguished from joint, used for a portion of a limb. 



Astacoides, Astacoidea, 78, 87. 



Auditory apparatus, 290, 325, 449, 474, 504. 



Bacilli, hyaline, 457. 



Baguettes olfactives, olfactory rods or filaments, 595. 



Basipodite (Milne-Edwards, according to WrzeiSniowski, 1S81), 

 or basopodite, 290 (/3a<ris, a stepping, ttovs, foot), 

 shortened into basis, 290, basos (Bate and Westwood), or 

 basus, the second (first free) joint of the Amphipod leg. 

 The equivalents in different authors are — first joint 

 (used in this Report) ; second joint ; hanche, 140, 155 ; 

 trochanter superieur ; femur, 34, 37 ; thigh; second coxal- 

 plate; Hiifte, 485 ; arm, 536 ; Oberarm ; Schenkel, 1607; 

 tibia, 149. 



Bastoncelli, little rods, 1652. 



Batonnets hyalins, olfactory filaments, 548 ; cylindres a 

 batonnets, 515. 



Biliary vessels. See Liver. 



Bismarck-brown, strongly recommended for the colouring of 

 living organisms. See Mayer, Die Caprelliden, pp. 153, 

 160. 



Blastoderm (/3A.a<rriis, germen, embryo, Sepp.a, skin), 464, 531, 

 553. 



Blastomere ($\a<rT6s, and p-ipos, a part), 463. 



Brain, 133, 349, 364, 489, 567, 1646. 



Branehia: (Ppdyxta, in Latiu branchios, the gills of fishes). 

 Latreille, 95 ; Milne-Edwards, 154, 184, 1S5 ; Kroyer, 

 202 ; Frey and Leuckart, 219 ; Nicolet, 232 ; Dana, 260, 

 264 ; Williams, 280 ; Costa, 296 ; Valette, 304 ; Boeck, 

 324 ; Lilljeborg, 361 ; Grube, 366 ; Hesse, 419 ; Dezso, 

 476 ; Wrzelniowski, 501, 507 ; Smith, 522 ; Claus, 598. 



Branchia;, number of, in Phronima, Milne-Edwards, 185 ; Giles, 

 1642. 



i Page 55'2, line 36, for Arthrocostraca read Arthrostraca. 



