2 2 1 



Genus Pitar Romer. 



1857. Pitar Rômer, Krit. Untersuch., p. 15. 



1862. Caryads Rômer, Malakozool. Blatt., IX, p. 58. 



1902. Pitaria Dali, Proc. U. S. Nat. Mus., XXVI, p. 353. 



1903. Pitaria Dali, Trans. Wagner Free Inst. Sci. Philadelphia, III, p, 1264. 

 1914. Pitaria Jukes-Browne, Proc. Malacol. Soc. London, XI, p. 61. 



1925. Pitar Woodring, Miocène Mollusks from Bowden, Jamaica, Pelecypods, etc., p. 152. 

 1930. Pitar Stewart, Spécial Publication Acad. Nat. Sci. Philadelphia, W 3, p. 232. 



The orthography of the generic name Pitar and its modification Pitaria, as suggested 

 by Dall, has been discussed at length by Stewart. He has also fuUy elucidated the question 

 of the genotype-Z'zVar titmens (Gmelin), and I agrée with bis conclusions in ail détails. Good 

 définitions of the genus are published in the works of Dall, Romer, Dall, Jukes-Browne 

 and Woodring. 



1. Pitar limatula (Sowerby). 



1851. Cytherea limatula Sowerby, Thés. Conch. II, p. 640, pi. CXXXVI, figs. 200, 201. 



1853. Dione limatula Deshayes, Cat. Conch. Brit. Mus., I, Veneridae, etc., p. 60. 



1857. Callista limatida Adams, H. & A., Gen. Rec. MolL, II, p. 426. 



1860. Cytherea limatula Reeve, Elem. Conch., II, p. 108. 



1862. Cytherea [Caryatis] limatula Romer, Malakozool. Blàtt., IX, p. 70. 



1869. Venus [Cytherea-Caryatis] limatula Romer, Mon. Venus, I, p. 98, pi. XXVI, figs. 3, 3 <2 — e. 



1869. Cytherea limatula Pfeiffer, in Martini-Chemn. Conch. Cab. (N. F.), XI (l), Ve?ieracea, 



p. 58, pi. XXII, fig. 5. 

 1882. Callista limatula Dunker, Ind. Moll. Mar. Japon., p. 200. 

 1884. Cytheraea (sic) limatula Grasset, Ind. Test.^ Viv., p. 265. 

 1890. Caryatis limatula Paetel, Cat. Conch. Samm., III, p. 71. 



I refer, with some hésitation, a single, young, right valve to Pitar limatula. This valve 

 agrées in gênerai form and sculpture with the types of the species in the British Muséum 

 (Nat, Hist.), London. 



Distribution : — The type-séries of P . limatula is without any locality, but Dunker 

 recorded the species from Japan and Amboina. 



The "Siboga" shell was collected in the Bay of Bima (St. 47). 



2. Pitar inanillae (Sowerby). 



185 1. Cytherea Manillae Sowerby, Thés. Conch., II, p. 634, pi. CXXXVI, figs. 180, 181. 



1853. Dione Manillae Deshayes, Cat. Conch. Brit. Mus., I, Veneridae, etc., p. 75. 



1857. Callista Manillae Adams, H. & A., Gen. Rec. Moll., II, p. 426. 



1860. Cytherea Manillae Reeve, Elem. Conch., II, p. 108. 



1862. Cytherea Manillae Rômer, Malakozool. Blâtt., IX, p. 66. 



1863. Circe Manillae Reeve, Conch. Icon., XIV, Circe, pi. IX, fig. 37. 



1867. Venus [Cytherea-Caryatis) Manillae Rômer, Mon. Venus, I, p. 90, pi. XXIV, figs. 2, 2^:, ^. 



1884. Cytheraea (sic) Manillae Grasset, Ind. Test. Viv., p. 265. 



1890. Caryatis Manillae Paetel, Cat. Conch. Sajnm., III, p. 71. 



1896. Caryatis Manillae Casto de Elera, Cat. Sist. Filip., p. 742. 



1903. Caryatis Manillae Hidalgo, Obras Malacol., II, p. 207. 



1928. Meretrix [Pitar] manillae Faustino, Summary Philippine Mar. Freshw. Moll., p. 75. 



Romer remarked that the young shells of P. manillae are not so pointed posteriorly as 



