EXPLANATION OF PLATE 52 (LII), CONTINUED 



Referred to Bolivina by Brady and transferred to Loxostomum by Cushman (C.L.F.R., Spec. Publ. No. 9, 

 1937, p. 190). 

 Figure 23. — Bolivina sp. nov., Thalmann 1933. 



Challenger Sta. 174B, Fiji, Pacific. (610 fathoms) 

 Referred by Brady, with figs. 24, 25, to B. textilarioides Reuss and by Cushman to B. subs pine scens Cushman 

 1922 (C.L.F.R., Spec. Publ. No. 9, 1937, p. 157). Parr (1950) follows Cushman but queries fig. 23 being the 

 same as figs. 24, 25. Thalmann (Eclog. geol. Helvet., Vol. 26, No. 2, 1933, p. 252) says of fig. 23: "Bolivina n. 

 sp. aff textularioides Brady (non Reuss) (n. sup. aflf. Thalmann)" but in 1942 (Amer. Midland Nat., Vol. 28, 

 p. 464) refers this fig. also to B. suhspinescens Cushman. (See below.) 

 Figures 24, 25. — Bolivina suhspinescens Cushman. 



Porcupine Sta. 18, West of Ireland, E. Atlantic. (183 fathoms) 

 Referred by Brady to B. textilarioides Reuss. Cushman (U.S.N.M. Bull. 71, Pt. 2, 1911, p. 46) proposed 

 B. spinescens "nom. nov." for Brady's figures 24, 25, but figured and described a diflferent form, from the North 

 Pacific; his later figures (C.L.F.R., Spec. Publ. No. 9, 1937, pi. 18 figs. 17-19) show the distinction even more 

 clearly. In 1922 Cushman described a new species, B. suhspinescens from the Atlantic, off the East Coast of the 

 U.S. (U.S.N.M. Bull. 104, Pt. 3, p. 48) with no reference to Brady's figures. Later (C.L.F.R. Spec. Publ. No. 

 9, 1937, p. 157) he referred Brady's figures 23-25 to B. suhspinescens with no mention of his earlier B. spinescens. 

 His figures and localities leave no doubt that this is the species figured by Brady, and Parr has since referred 

 Brady's figures to B. suhspinescens Cushman. Loeblich and Tappan (personal communication) have pointed 

 out that Cushman should have described B. spinescens as sp. nov. not "new name", and that the type of this 

 species (Cushman Coll. No. 17080, from Albatross Sta. D 2192) is from the Pacific. The Atlantic form is there- 

 fore recorded here as B. suhspinescens Cushman. 

 Figures 26-28. — Loxostomum limhatum (Brady). 



Fig. 26. Challenger Sta. 260A, Honolulu reefs, Pacific. (40 fathoms) 

 Fig. 27. Challenger Sta. 218A, Admiralty Islands, Pacific. (16-25 fathoms) 

 Fig. 28. Challenger Sta. 219A, Admiralty Islands, Pacific. (17 fathoms) 

 Referred by Brady to Bolivina and transferred by Cushman to Loxostomum. 

 Figure 29. — Bolivina suhtenuis Cushman. 



Challenger Sta. 174A, Fiji, Pacific. (255 fathoms) 

 Referred by Brady to B. tenuis Brady, a homonym of B. tenuis Marsson 1878, and named B. suhtenuis by 

 Cushman (C.L.F.R., Spec. Publ. No. 6, 1936, p. 57). 

 Figure 30. — Bolivina nitida Brady. 



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

 Figures 31, 32. — Sigmavirgulina tortuosa Brady.* 



Challenger Sta. 219A, Admiralty Islands, Pacific. (17 fathoms) 

 Referred to Bolivina by Brady. 

 Figures 33, 34. — Sigmavirgulina (?) tortuosa Brady var. atlantica (Cushman). 

 Challenger Sta. 352, Cape Verde Islands, Atlantic. (11 fathoms?) 

 Referred by Brady to B. tortuosa and by Cushman to B. tortuosa var. atlantica (C.L.F.R., Spec. Publ. No. 6, 

 1936, p. 57). This is probably a Sigmavirgulina. 



*Note: Loeblich and Tappan regard tortuosa Brady as generically distinct from Bolivina and propose Sigmavirgulina with tortuosa as 

 genotype (U.S.N.M. Bull. 215, 1957, p. 227). B. tortuosa var. atlantica Cushman probably belongs to this new genus also (Loeblich and 

 Tappan, personal communication). 



EXPLANATION OF PLATE 53 (LIII) 



Figs. 1,2, 10, 11,24, 25, 28,29, X 50; Figs. 3-9, 12-15, 18-21, 26, 27, 32, 33, X 60; 

 Figs. 16, 17, X 40; Figs. 22, 23, X 80; Figs. 30-31, X 70. 

 Figure 1. — Bolivina hradyi Asano. 



Challenger Sta. 305, West of Patagonia, E. Pacific. (120 fathoms) 

 Referred by Brady to B. heyrichi Reuss and by Asano (Jour. Geol. Soc. Japan, Vol. 45, 1938, p. 603) to 

 B. hradyi. 

 Figures 2-4. — Bolivina alata Seguenza. 



Fig. 2. Challenger Sta. 191, Arrou Islands, N. Pacific. (800 fathoms) 

 Fig. 3. Challenger Sta. 209, Philippines, Pacific. (95-100 fathoms) 

 Referred by Brady to B. heyrichi Reuss var. alata Seguenza. 

 Figures 5, 6. — Bolivina pygmaea Brady. 



Challenger Sta. 145, Prince Edward Island, S. Pacific. (50-150 fathoms) 

 Figures 7-9. — Bolivina robusta Brady. 



Fig. 7. Challenger Sta. 191A, Ki Islands, C. Pacific. (580 fathoms) 

 Figs. 8-9. Challenger Sta. 174B, Fiji, Pacific. (610 fathoms) 



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