657 
Dipterus platyceplialus, Ag. t, structure, 
207-212, 215; mentd., 197, 199, 
205. 
— valenciennesi, Sedf/. Sf Murch. f , 205- 
207; mentd., 211-212. 
Disoorbiua, Park. ^- Jones, 630. 
— araucana, Brarly, 6.31. 
— baccata. Heron- All. Sf Earl., 631. 
— concinna, Brady, 630. 
— cora, Heron- All. ^- Earl. * 6.30, 631. 
— globularis, Brady, 631. 
— harmeri, Heron- All. Sf Earl, 633. 
— isabelleana, Brady, 630. 
— lauriei, Heron- All. <S- Earl. *, 633, 634, 
647. 
— mediterranensis, Heron- .411. Sf Earl., 
631. 
— nitida. Heron- All. ^- Earl., 630. 
— patelliformis, Brady, 633. 
— polystomelloides, Park. S,- Jones, 632. 
— pulvinata, Brady, 633, 646. 
— pvramidalis, Heron-All. ^- Earl. *, 634, 
647. 
— rarescens. Brady, 632. 
— reniformis, Heron-All. >.^- Earl., 632. 
— rimosa, Park. Sf Jones, 632. 
— rosacea, Brady, 631. 
— ninosa, Brady, 632. 
— taberuacularis, Brady, 633, 646. 
var. levis, Lieb. ^- Schnb., 634. 
— tabernacularis, Sideb., 633. 
— turbo, Brady, 631. 
— valvulata, Brady, 631, 632. 
— vilardeboana, Hero7i-All. S,- Earl. *, 631 . 
Distiproboscis of Cblorops, 407. 
Dittosaria, Busk\, 307. 
— wetherellii, Busk-\i, 307. 
Diver, Red-throated, courtship activities, 
253-292 ; Blacli-throated, 205 et seq. 
Dolabrit'era, Gray, 534. 
— dolahrifei-a, Raug, 534. 
— pelsartensis, ODon. *, 523, 534, 535, 
577, 578. 
Douatia arabica. Tops., 495. 
— ylobostellata. Tops., 495. 
— mgalli, Dendy, 495. 
— japonica var. albanensis, Heutsch., 495. 
— multistella. Bendy *, 478, 495. 
— robusta, Dendy*, 478, 495. 
Doridicola, Leydig, 569. 
Doridojjsis, Aid. & Haiic, 561. 
Dorido2}sis gemmaeea. Aid. & Hanc, 561. 
— mammosa, auct., 562. 
— nigra, auct., 561. 
Doriopsis, Pease, 560, 561. 
— granulosa. Pease, 560. 
— mammosa, auct., 562. 
— nigra, auct., 561. 
Dorippe lunata, M.-Edtv., 47, 48. 
Doriprismatica, Orb., 553, 5-04. 
— atromarginata, Ctiv., 553. 
Doris lugubris, Gravenh., 561. 
— mammosa, Abrah., 562. 
— nigra, Stimp., 561. 
— pallida, Riipp. &; Leuck., 553. 
Doto coronata, 569. 
Dove, courtship activities, 275, 285. 
Dragonflies, mentd., 143. 
Drammenia, Thor, 387. 
— crassipaipis, Thor, 387, 392. 
— elongata, Thor, 387, 388. 
Dromia, Fah:, 31, 33, 36, 37, 44, 51. 
— vulgaris, Bouvier, 31, 35, 40, 42, .50, 77, 
78. 
Drosophila, Fall., 88 ; courtsliip activities, 
270. 
Ducks, courtship activities, 290. 
Duvaucelia, Risso, 543. 
Dynameua, Lev., 307. 
— barbata. Lev., 307. 
Echinocardium cordatuni, Gray, 251 ; 
distrib., 229-2.30. 
Echinnderms from West Australia (Clark), 
229-251 ; mentd., 285. 
Echinndictyum bilamellatum, Ridl., 479, 
504. 
— elegans, Hallm., 604. 
Echinoidea from West Australia, 248-251. 
Echiuometra mathaei, Blninv., 250 ; 
distrib., 232. 
— setosa, Leske, 248. 
Echinonema vasiplicata. Carter, 504. 
Echinospira, Krohn, 92, 93. 
Echinus, Linn., 96. 
— cordutus. Pennant, 251. 
— erythrogrammus, Valenciennes, 250. 
— gratilla, Linn., 249. 
— mathaei, Blainv., 250. 
— pallidus, Lam., 249. 
Egret, Snowy, courtship activities, 26.5 et 
