EXPLANATION OF PLATE 91 (XCI) 



Fig. 1, X 30; Figs. 2, 3, X 60; Fig. 4, X 90; Fig. 5, X 100; Figs. 6-9, X 50. 

 Figure 1. — Epistomaroides polystomelloides (Parker and Jones). 



Challenger Sta. 186, Wednesday Island, Pacific. (7-8 fathoms) 

 Referred by Brady to Discorbina and by Uchio (Jap. Jour. Geol. Geogr., Vol. 22, 1952, p. 158) to Epis- 

 tomaroides as genotype. 

 Figure 2. — Discorbinella biconcavus (Jones and Parker). 



Challenger Sta. 162, Bass Strait, Pacific. (38-40 fathoms) 

 Referred by Brady to Discorbina and by Parr (Min. & Geol. Jour., Victoria, Vol. 2, No. 5, 1941, p. 305) 

 to Planulinoides as genotype. In 1945 (Proc. Roy. Soc. Victoria, n.s.. Vol. 56, p. 211) Parr transferred this 

 species to Discorbinella, making Planulinoides a synonym of that genus. 

 Figure 3. — Heronallenia lingulata (Burrows and Holland). 



Challenger Sta. 162, Bass Strait, Pacific. (38-40 fathoms) 

 Referred by Brady to Discorbina biconcava Parker and Jones and to Heronallenia lingulata (Burrows and 

 Holland) by Chapman and Parr (Proc. Roy. Soc. Victoria, n.s., Vol. 43, Pt. 2, 1931, p. 236). 

 Figure 4. — Valvulineria rugosa (d'Orbigny) var. minuta (Schubert). 

 Challenger Sta. 191A, Ki Islands, Pacific. (580 fathoms) 

 Referred by Brady to Discorbina rugosa (d'Orbigny) and by Schubert (Jahrb. Geol. Reichsanst., Wien, 

 Vol. 53, 1904, p. 420) to D. rugosa var. minuta. Parr and others placed this species in Discorbis but it appears 

 to belong in the genus Valvulineria. Fornasini (Mem. R. Ace. Sci. 1st. Bologna, Ser. V, Vol. 8, 1900, p. 394) 

 noted that this figure is very close to Discorbina bradyana Fornasini from the Mediterranean. The Pacific 

 form of Brady seems distinct to the writer so Schubert's name has been used here. 

 Figures 5, 8. — Valvulineria bradyi Brotzen. 



Fig. 5. Challenger Sta. 209, Philippines. (95-100 fathoms) 

 Fig. 8. Challenger Sta. 185, Torres Strait, Pacific. (155 fathoms) 

 Referred by Brady to Discorbina allomorphinoides (Reuss) and by Brotzen (Sver. Geol. Unders. Avh., Ser. 

 C, No. 396, Vol. 30, No. 3, 1936, p. 154) to Valvulineria bradyi. 

 Figure 6. — Lamarckina sp. nov. 



Challenger Sta. 279C, off Tahiti, Pacific. (620 fathoms) 

 Referred by Brady to Discorbina saulcyi (d'Orbigny) but Cushman (U.S.N.M. Bull. 100, Vol. 4, 1921, p. 

 307) regards d'Orbigny's species as quite distinct and leaves Brady's form as "Discorbis sp?". It does not appear 

 from Brady's figures to be either Discorbis or Rosalina, and has been placed in Lamarckina as a new species. 

 Figure 7. — Lamarckina ventricosa (Brady). 



Challenger Sta. iZ, ofT Bermuda, Atlantic. (435 fathoms) 

 Referred by Brady to Discorbina and by Cushman (C.C.L.F.R., Vol. 2, Pt. 1, 1926, p. 12) to Lamarckina. 

 Figure 9. — Valvulineria (?) sp. nov. 



Challenger Sta. 344, Ascension Island, Atlantic. (420 fathoms) 

 Referred by Brady to Discorbina obtusa (d'Orbigny)? Brady himself expresses doubt that his species was the 

 same as d'Orbigny's obtusa and the figures indicate considerable differences. It is probably a new species allied 

 to D. subobtusa Cushman. It is not a Discorbis as that genus has been restricted by Hornibrook and Vella (The 

 Micropal., Vol. 8, No. 1, 1954, pp. 27-28) but appears to be closely related to Valvulineria. 



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