i6i 



2. Divaricella cicniingi (A. Adams & Angas). 



1863. Liicina [Cyclas] Ciiiiiiiigi Ada-ms, A., & Angas, Proc. Zool. Soc. London, p. 426, pi. XXXVII, 

 fig. 20. 

 1865. Liicina [Cyclas) Cumingi Angas, Proc. Zool. Soc. London, p. 651. 

 1873. Liicina divaricata Hutton (non Lamarck), Cat. Mar. Moll. New Zealand, p. 74. 



1877. Lucina [Cyclas) CiLiningi Angas, Proc. Zool. Soc, London, p. 192. 



1878. Lucina divaricata Hutton (non Lamarck), Journ. Conchyliol., XXVI, p. 51. 



1883. Lucina Cnmingl Brazier, Proc. Linn. Soc. N. S. Wales, VIII, p. 229. 



1884. Loripes Citiningiana Grasset, Ind. Test. Viv., p. 279. 



1884. Lancina [Divaricella) Ciuningi Smith, Rept. Voy. "Alert", p. 508. 



1885. Lucina [Divaricella) Cumingi Smith, "Challenger" Lamellibranchia, p. 177. 

 1885. Lucina dentata Hutton (non Wood), Proc. Linn. Soc. N. S. Wales, IX, p. 525. 

 1890. Lucina [Cyclas) Cumingi Paetel, Cat. Conch. Samm., III, p. 125. 



1906. Divaricella Cumingi Hedley, Trans. New Zealand Inst., XXXVIII, p. 73. 



191 1. Divaricella Cumingi Hedley, Zool. Res. "Endeavour", Moll. p. 92. 



19 13 — 15. Divaricella Cumingi Suter, Man. New Zealand Moll., p. 913, pi. LVIII, fig. i8. 



1918. Divaricella Cumingi Hedley, Journ. Roy. Soc. N. S. Wales, LI, p. 18. 



192 1. Divaricella Cumingi Lamy, Journ. Conchyliol., LXV, p. 277. 



The orbicLilar, subglobose, moderately thick shell of D. ciiiningi bas a beautiful sculpture 

 formed by inverted V-shaped ridges with their apices on a line running from the umbo to almost 

 the anteriormost point of the basai margin ; a few strongly marked lines of growth are also to 

 be distinguished as low, rounded concentric ridges. 



Distribution : — D. ciuningi is a common species round New Zealand, and has also been 

 recorded from Australia and Ceylon. 



In the "Siboga" collection there are two young and worn valves dredged from the 

 Western entrance of Samau Strait (St. 59). 



Genus Dentilucina P. Fischer. 



1887. Dentilucina Fischer,' P., Man. Conchyliol., p. 1143. 



1903. Phacoides Dali, Trans. Wagner Free Inst. Sci. Philadelphia, III, p. 1359. 

 ■ 191 5. Dentilucina Iredale, Proc. Malacol. Soc. London, XI, p. 302. 

 1920. Phacoides Lamy, Journ. Conchyliol. LXV, p. 169. 

 1925. Phacoides Woodring, Miocène MoUusks from Bowden, Jamaica, Pelecypods etc., p. 117. 



As Iredale rightly pointed out Blainville's name Phacoides was used as a vernacular 

 name and must therefore give place to Dentihtcina P. Fischer. The génotype is Dentilucina 

 jamaicensis (Lam.). 



In the "Siboga" collection two other subgenera, Callucina Dali — type D. [C.) radians 

 (Conrad) and Bellitcina Dali — type D. [B). ettcosmia Dali are also represented. 



I. Dentilucina [Dentihtcina^ dentifera (Jonas). 



1846. Lucina dentifera Jonas, Zeitschr. Malakozool., III, p. 17. 



1847. Lucina dentifera Philippi, Abbild. Beschreib. Conch., II, p. 206, Lucina, pi. I, figs. 4,4. 

 1850. Lucina dentifera Reeve, Conch. Icon., VI, Lucina, pi. III, figs. lOc?, b. 



1857. Lucina dentifera Adams, H. & A., Gen. Rec. Moll., II, p. 467. 



1860. Lucina dentifera Reeve, Elem. Conch., II, p. 122. 



1862. Lucina dentifera Chenu, Man. Conchyliol., II, p. 119, fig. 568. 



SIBOGA-F.XPEmTTF. LTHiT. 21 



