EXPLANATION OF PLATE 70 (LXX) 



Fig. 1, X 40; Fig. 2, X 30; Figs. 3, 13, 14, X 25; Fig. 4, X 16; Fig. 5, X 15; Fig. 6, X 35; 

 Figs. 7, 8, 16-18, X 20; Figs. 9-12, 15, X 35. 

 Figure 1. — Robulus crassus (d'Orbigny). 



Challenger Sta. 174C, off Fiji, Pacific. (210 fathoms) 

 Referred by Brady to Cristellaria and by Thalmann to Robulus. 

 Figure 2. — Robulus nitidus (d'Orbigny). 



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

 Referred by Brady to Cristellaria and by Thalmann to Robulus. 

 Figure 3. — Astacolus reniformis (d'Orbigny). 



Challenger Sta. 24, West Indies. (390 fathoms) 

 Referred by Brady to Cristellaria, and by Thalmann to Astacolus. 

 Figures 4-6. — Lenticulina iota (Cushman). 



Figs. 4, 5. Challenger Sta. 24, West Indies. (390 fathoms) 

 Fig. 6. Challenger Sta. 174C, off Fiji, Pacific. (210 fathoms) 

 Referred by Brady to Cristellaria cultrata (Montfort), and by Cushman (U.S.N. M. Bull. 104, Pt. 4, 1923, 

 p. Ill) to C. iota nov. Transferred to Lenticulina by Thalmann. 

 Figures 7, 8. — Lenticulina denticulifera (Cushman). 



Challenger Sta. 174C, off Fiji, Pacific. (210 fathoms) 

 Referred by Brady to Cristellaria cultrata (Montfort) and by Cushman (U.S.N.M. Bull. 71, Pt. 3, 1913, 

 p. 75) to C. denticulifera. Transferred to Lenticulina by Thalmann. 

 Figures 9-12. — Lenticulina calcar (Linnaeus). 



Figs. 9, 10. Challenger Sta. 209, Philippines. (95-100 fathoms) 

 Fig. 11. Challenger Sta. 23, West Indies. (450 fathoms) 

 Fig. 12. Challenger Sta. 24, West Indies. (390 fathoms) 

 Referred by Brady to Cristellaria and transferred by Thalmann to Lenticulina. The Philippine form (figs. 

 9, 10) differs from that from the West Indies and may constitute a distinct variety? 

 Figures 13, 14, ?15. — Lenticulina formosa (Cushman). 



Figs. 13, 14. Challenger Sta. 23, West Indies. (450 fathoms) 

 Fig. 15. Challenger Sta. 174C, off Fiji, Pacific. (210 fathoms) 

 Referred by Brady to Cristellaria calcar (L.) and by Cushman (U.S.N.M. Bull. 104, Pt. 4, 1923, p. 110) 

 to C. formosa. Cushman cites only figs. 13, 14 of Brady but it seems probable that fig. 15 represents the same 

 species, though from a very different locality. Transferred to Lenticulina by Thalmann. 

 Figure 16. — Lenticulina papulosa (Fichtel and Moll). 



Challenger Sta. 174C, off Fiji, Pacific. (210 fathoms) 

 Referred by Brady to Cristellaria and transferred by Thalmann to Lenticulina. 

 Figures 17, 18. — Lenticulina submamilligera (Cushman). 



Challenger Sta. 174C, off Fiji, Pacific. (210 fathoms) 

 Referred by Brady to Cristellaria mamilligera Karrer and by Cushman (Proc. U.S.N.M., Vol. 51, 1917, p. 

 657) to C. submamilligera. Transferred to Lenticulina by Thalmann. 



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