remotifolius, Senecio. reniforme, Trichomanes. reniformis, Rochefortia. Rennell Isld., geol. (Benson), 118, 123. reo irirangi, te, in song (Andersen), 699. repanda, Dicranomyia. repens, Ranunculus. Research Grant Committee. See N.Z. Institute. research grants, 1923 (Inst.), 790. research work, report for ten years ending 1923 (Inst.), 766. reticulata, Eucopella. retiolum, Priene. revolutum, Cymatium. Rhagodia nutans R. Br., host of Uredo Rhagodiae (Cunningham), 43. Rhagodiae, Uredo. Rhapsa scotosialis Walk., strigil (Philpott), 220. Rhathamictis n. g. (Meyrick), 662. — perspersa n. sp. (Meyrick), 662. Rhipogonum scandens Forst. (supplejack) used for roria (Andersen), 689. Rhizorus reflexus (Hutt.) [Volvulella], occ. Awamoa (Finlay), 511; Pukeuri, 508. Rhyacophilidae, key, &c. (Tillyard), 285–86. Rhynchonella, occ. (Benson), 121. Rhyssoplax canaliculiata (Q. & G.), occ. Dunedin (Finlay), 518. Ridley, S. O., forms of Sertularia episcopus (Bale), 246. rigida, Rubus. Ringicula uniplicata Hutt., occ. Ardgowan (Finlay), 510; Pukeuri, 508. Ringiculidarum gen. et. sp. indet., with pl. (Wilckens), 542. riparia, Uncinia. Rissoa, application of name (Finlay), 480. — group, charact. (Finlay), 481. — atomus Suter, syn., 488. — filocincta Hedley and Pettered, rel. to Linemera (Finlay), 483 — gradata Hutt., syn., 483, 484. — misera Desh., rel. to Rissoina perplexa (Finlay), 489. — nana (Lamk.), rel. to Rissoina perplexa (Finlay), 489. — pingue Webster, the only Recent Linemera of N.Z. (Finlay), 483. — semisulcata Hutt., classific. by M. & M. (Finlay), 480. — vana Hutt., syn. of Potamopyrgus badia, and occ. (Finlay), 491. Rissoids, Tertiary (Finlay), 480. Rissoina group, charact. (Finlay), 482; in key, 493. — chathamensis (Hutt.), occ. (Finlay), 490. — — in key (Finlay), 494. — — rel. to R. perplexa (Finlay), 489. — emarginata (Hutt.), occ. (Finlay), 498. — — syn., 490. — inca D'Orb., in group (Finlay), 482. — obliquecostata M. & M., occ. (Finlay), 480, 490; in key, 494. — perplexa n. sp., with fig. (Finlay), 489; in key, 494. — rugulosa (Hutt.), syn., 490. — vana Hutt., occ. Awamoa (Finlay), 511. Riverhead-Kaukapakapa dist., geol. (Bartrum), 139. Rivers, W. H. R., causes of racial extinction (Rangi Hiroa), 369. rivertonensis, Dardanula. Roberts, E., lighthouse planned by (Baillie), 706, 707. Robertson's Wharf, Wellington (Baillie), 715. robini, Macoma. robusta, Bela. — Sertularella. robustum, Ataxocerithium pyramidale subsp. robustus, Xymene. Rochefortia reniformis Sut., occ. Taieri, &c. (Finlay), 517. Rodway, F. A., on host of Aecidium monocystis (Cunningham), 47. Roestelia, in key (Cunningham), 32. rohe, foot-gear (Rangi Hiroa), 360. Rolfei, Rubus. Rongorongo and kumara (Rangi Hiroa), 348. roria, proverb concerning (Andersen), 689; sketch, 689. Rosa Eglentaria Mill. (= R. rubiginosa L.), host of Phragmidium mucronatum (Cunningham), 16. — rubiginosa L. See R. Eglentaria. Rosaceae, hosts of Hamaspora acutissima (Cunningham), 22. — — Phragmidium mucronatum (Cunningham), 16. Rosae, Aecidium. — Caeoma. — Puccinia. — Uredo. Rosae-centrifoliae, Uredo. Rosae-pimpinellifoliae, Phragmidium. Rosarum, Phragmidium. Ross Sea, subsided region (Benson), 132. rostrata, Halicornia. Rostrupia Lagerh., based on abnormal P. Elymi (Cunningham), 2. Rotalia, occ. (Bartrum), 149. Rotifera, trout-food (Phillipps), 382. Rotti, geol. (Benson), 103, 104, 108. Rouffaer River, geol. phases (Benson), 114. Rubia eae, hosts of Aecidium hupiro (Cunningham), 36. — — Puccinia punctata (Cunningham), 7. rubicunda, Septa. rubiginosa, Rosa. rubra, Festuca. — Tubiclava. Rubus australis Forst. f., host of Hamaspora acutissima (Cunningham), 22. — moluccanus L., host of Hamaspora acutissima (Cunningham), 21. — rigida, host of Hamaspora longissima (Cunningham), 21. — Rolfei, host of Hamaspora acutissima (Cunningham), 21. rudis, Borsonia. — Mactra ovata var. rufa, Astelobia. — Gnophomyia. — — (Astelobia). rufescens Hymenophyllum.