SELENARIIDtE. 81 



Lnnulites into Lunulites and Cupularia, regarding the two, however, only in the liglit 

 of sub-genera. There can be no doubt of the propriety and advantage of such a division, 

 which was consequently adopted by me in the 'Brit. M. Cat.,' in 1852, and is followed 

 here, as will appear in the subjoined Synopsis of the genera. 



With regard to the distribution of the Selenariidse in time and space, it would seem, 

 as regards the former, that they made their fir«t appearance in the Cretaceous period, and 

 are continued through the Tertiary up to the present time, in which the number of known 

 species is about twelve. 



The recent species at present known, and their distribution are — 



(1) Cupularia. 



1. C. GUiNEENSis, B., B. M. Cat., p. ii, p. 98, pi. cxiv. 



Habitat. — New Guinea. 



2. C. OwENii, Gray, B. M. Cat., p. ii, p. 99, pi. cxv. 



Habitat. — W. Africa ; Madeira ; Canaries. 



3. C. LowET, Gray, MS., B. M. Cat., p. ii, p. 99, pi. cxvi. 



Habitat. — Madeira ; Canaries. 



4. C. STELLATA, B., B. M. Cat., p. ii, p. 99, pi. cxviii. 



Habitat. — Philippines. 



5. C. PYEiFOiiMis, B., B. M. Cat., p. ii, p. 100, pi. cxxiv. 



Habitat. — St. Vincent. 



6. C. Johnso'ni, Busk, Q. J. M. Sci., vi, p. 67, Zooph., pi. xxiii, figs. 1 — 5. 



Habitat. — Madeira ; Canaries. 



7. C. CANAiiiENSis, B., Q. J. M. Sci., vi, p. 66, pi. xxiii. figs. 6 — 9. 



Habitat. — Madeira ; Canaries. 



(2) Lunulites. 



8. L. GiBBOSA, B., B. M. Cat., p. ii, p. 100, pi. cxi. 



Habitat. — Cape Capricorn, Australia. 



9. L. CAPULUS, B., B. M. Cat., p. ii, p. 100, pi. cxii. 



Habitat. — Cape Capricorn, Australia. 

 10. L. PHiLipPiNENsis, B., B. M. Cat., p. ii, p. 101, pi. cxiii. 



Habitat. — Philippine Islands. 

 ILL. CANCELLATA, B., B. M. Cat., p. ii, p. 100, pi. cxiii, figs. 4 — 7. 



Habitat. — Philippine Islands. 



(3) Selenaria. 



12. S. MACULATA, B., B. M. Cat., p. ii, p. 101, pi. cxvii. 

 Habitat. — Bass's Strait. 



Of these twelve species it will be observed that eight are confined to the northern, 

 and four to the southern hemisphere. Moreover, that of the former, five belong to the 



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