REPORT ON FORAMIXIFERA AND OSTRACODA 63 



Reophax dentaliniformis, H. B. Brady (Plate III, fig. 17) 



Reophax dentaliniformis, H. B. Brady, 1881, Quart. Journ. Micr. Sci., vol. xxi, 

 N.S., p. 49. Idem, 1884, Rep. Chall, vol. ix, p. 293, pi. xxx, figs. 21, 22. Goes, 1894, 

 K. Svenska Vet.-Akad. Handl, vol. xxv, p. 25, pi. vi, figs. 172-175. Millett, 1899, 

 Journ. B. Micr. Soc., p. 254. Flint, 1899, Rep. U.S. Nat. Mus. for 1897, p. 274, 

 pi. xviii, fig. 2. 



Tests varying in composition from fine to coarse material in the same sounding, 

 and consisting of angular quartz grains varied by occasional augite granites. The 

 shallowing of deep-water species as they advance to the polar seas is strikingly brought 

 to notice by such forms as the present, which typically inhabit great depths in inter- 

 tropical regions. Dr. Brady, in the Challenger Report, notes only four out of twenty- 

 one stations where it was found in less depths than 1000 fathoms. It is a widely 

 distributed, but generally rare, form. 



Occurrence. — Sample No. 4, 153 fathoms, rare ; No. 5, 171 fathoms, common ; 

 No. 7, 225 fathoms, frequent; No. 9, 360 fathoms, frequent; No. 13, 462 fathoms, 

 very rare ; No. 14, 472 fathoms, rare ; No. 15, 655 fathoms, rare. 



Reophax longiscatiformis, sp. nov. (Plate III, fig. 18) 



Description.— Test arenaceous, straight or very slightly curved, consisting of a 

 series of long, ovoid, somewhat irregular segments with deeply incised transverse 

 sutures. Length of test figured (fragmentary), 144 mm. ; greatest width, 173 mm. 



This species is rare in the Antarctic soundings, being represented by two examples. 

 It is interesting as an isomorphous form, comparable with d'Orbigny's hyaline species, 

 Nodosaria longiscata* which is a well-known tertiary fossil. 



Occurrence.— Sample No. 9, 360 fathoms ; No. 13, 462 fathoms. 



Reophax murrayana, sp. nov. (Plate III, fig. 19) 



Description. — Test finely arenaceous and spiculose ; slender, gently curved and 

 gradually tapering to a blunt point ; consisting of numerous segments slightly longer 

 than wide, with sutures nearly at right angles to length of shell. Length of test 1 "88 mm. ; 

 greatest width, "115 mm. 



This figured specimen, which cannot be matched with already known types of 

 Reopliax, is isomorphous with a Nodosaria {Dentalina) of the type of Nodosaria (Dentalina ) 

 consobrina, d'Orbigny, var. emaciata, Reuss. t The sample of mud from which it was 

 taken was very small, otherwise more examples might have been found. 



Named in honour of Mr. James Murray, F.R.S.E., of the British Antarctic Ex- 

 pedition of 1907-9, who superintended the zoological work of the expedition. 



Occurrence. — Sample No. 7, 225 fathoms. 



Genus — Haplophragmium, Reuss, 1860 

 Haplophragmium canariense, d'Orbigny, sp. (Plate III, fig. 20) 



Nonionina canariensis, d'Orbigny, 1839, Foram. Canaries, p. 128, pi. n, figs. 

 33, 34. Haplophragmium canariense, d'Orbigny, sp., H. B. Brady, 1884, Rep. 



* Foram. Foss. Vienne, 1846, p. 32. pi. i, figs. 10-12. See also Sherborn and Chapman, Journ. 

 Roy. Micr. Soc, 1899, p. 4S6, pi. xi, figs. 17, 18. 



t Dentalina emaciata. Reuss, Zeitschr. d. devtsch. geol. Gesellsch., vol. iii, 1851, p. 63, pi. iii, 

 fisr. 9. 



