Diplodonta globus, copyright Smithsonian National Museum of Natural History.

Belongs within: Neoheterodontei.

The Ungulinidae are a group of infaunal bivalves commonly found in muddy sand or gravel. Members have rounded shells with a low beak, the external sculpture being smooth, punctate or concentrically ribbed.

Ungulinidae [Diplodontidae, Ungulinoidea]
    |  i. s.: Phlyctiderma (Phlyctiderma) discrepans (Carpenter 1857) PP78
    |         Felaniella MG-H11
    |           |–F. usta L10
    |           `–F. zelandica HS01
    |         Joannisiella F27a
    |           |–J. moretonensis (Deshayes 1855) [=Cyrenella moretonensis] H09
    |           |–J. novozelandica [=Lucina novozelandica, L. novaezelandiae (l. c.), Diplodonta striata] F27a
    |           `–J. sphaericula (Deshayes 1855) [=Cyrenella sphaericula] H09
    |         Brachymeris alta Conrad 1875 SB93
    |–Cycladicama cumingi (Hanley 1844) TW07
    `–+–Ungulina cuneata (Spengler 1798) TW07
       `–Diplodonta Brown 1831 TW07, G79
            |  i. s.: D. adamsi (Angas 1867) [=Mysia adamsi] H09
            |         D. ampla (Hutton 1885) F27a
            |         D. balcombensis Pritchard 1906 [=D. subquadrata Tate 1887 nec Carpenter 1855 nec Gabb 1873] F27b
            |         D. brasiliensis G79
            |         D. calculus C64
            |         D. candeana G79
            |         D. conspicua Smith 1885 H09
            |         D. corpulenta Smith 1885 H09
            |         D. ethima Melvill & Standen 1899 H09
            |         D. gabbi [=D. subquadrata Gabb 1873 non Carpenter 1855] F27b
            |         D. globosa Adams 1856 H09
            |         D. scalpta Smith 1885 H09
            |         D. semiaspera C64
            |         D. semiasperoides L10
            |         D. subcrassa Smith 1884 H09
            |         D. subglobosa Smith 1885 H09 [=Felania subglobosa C64]
            |         D. sublateralis Smith 1885 H09
            |         D. subquadrata Carpenter 1855 F27b
            |         D. suborbicularis (Tate 1887) [=Sacchia suborbicularis] F27b
            |         D. suprema Olsson 1961 PP78
            |         D. tasmanica F27a
            |–D. (Felania) TW07
            |    |–D. (F.) circularis Dunker 1846 TW07
            |    |–‘Felania’ tellinoides C64
            |    `–‘Mysia’ (F.) usta Gould 1861 C64
            |–D. (Sphaerella) orbella [=Lucina orbella; incl. Mysia tumida, Sphaerella tumida] C64
            |–D. (Zemysia Finlay 1927) P61
            |    |–D. (*Z.) zelandica (Gray 1835) [=Lucina zelandica] P61
            |    |–D. (Z.) infrequens Marwick 1926 F27a
            |    `–D. (Z.) rakiura (Powell 1939) P61
            `–D. (Zemysina Finlay 1927) P61
                 |–D. (*Z.) globus Finlay 1927 P61 [=Zemysia (*Z.) globus F27a]
                 |–D. (Z.) globularis Lamarck 1818 [=Zemysia (Z.) globularis] F27a
                 |–D. (Z.) globulosa [=Zemysia (Z.) globulosa] F27a
                 `–D. (Z.) striatula (Finlay 1927) P61 [=Zemysia (Z.) striatula F27a]

Nomen nudum: Diplodonta newtoni Cossmann 1907 F27b

*Type species of generic name indicated


[C64] Carpenter, P. P. 1864. Supplementary report on the present state of our knowledge with regard to the Mollusca of the west coast of North America. Report of the British Association for the Advancement of Science 33: 517–686.

[F27a] Finlay, H. J. 1927a. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320–485.

[F27b] Finlay, H. J. 1927b. New specific names for austral Mollusca. Transactions and Proceedings of the New Zealand Institute 57: 488–533.

[G79] Guppy, R. J. L. 1879. First sketch of a marine invertebrate fauna of the Gulf of Paria and its neighbourhood. Part I.—Mollusca. Journal of Conchology 2: 151–172.

[HS01] Hayward, B. W., A. B. Stephenson, M. S. Morley, W. M. Blom, H. R. Grenfell, F. J. Brook, J. L. Riley, F. Thompson & J. J. Hayward. 2001. Marine biota of Parengarenga Harbour, Northland, New Zealand. Records of the Auckland Museum 37: 45–80.

[H09] Hedley, C. 1909. The Marine Fauna of Queensland: Address by the President of Section D. Australasian Association for the Advancement of Science: Brisbane.

[L10] Lebedev, E. B. 2010. Diversity of soft-bottom mollusks in the Far Eastern Marine Reserve (Peter the Great Bay, Sea of Japan). In: China-Russia Bilateral Symposium: Proceedings of the China-Russia Bilateral Symposium of “Comparison on Marine Biodiversity in the Northwest Pacific Ocean”, 10–11 October 2010, Qingdao (China) pp. 169–173. Institute of Oceanology, Chinese Academy of Sciences; A. V. Zhirmunsky Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences.

[MG-H11] McEnnulty, F. R., K. L. Gowlett-Holmes, A. Williams, F. Althaus, J. Fromont, G. C. B. Poore, T. D. O’Hara, L. Marsh, P. Kott, S. Slack-Smith, P. Alderslade & M. V. Kitahara. 2011. The deepwater megabenthic invertebrates on the western continental margin of Australia (100–1100 m depths): composition, distribution and novelty. Records of the Western Australian Museum Supplement 80: 1–191.

[PP78] Poorman, F. L., & L. H. Poorman. 1978. Additional molluscan records from Bahía de Los Angeles, Baja California Norte. Veliger 20 (4): 369–374.

[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4th ed. Whitcombe and Tombs Limited: Christchurch.

[SB93] Skelton, P. W., & M. J. Benton. 1993. Mollusca: Rostroconchia, Scaphopoda and Bivalvia. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 237–263. Chapman & Hall: London.

[TW07] Taylor, J. D., S. T. Williams, E. A. Glover & P. Dyal. 2007. A molecular phylogeny of heterodont bivalves (Mollusca: Bivalvia: Heterodonta): new analyses of 18S and 28S rRNA genes. Zoologica Scripta 36 (6): 587–606.

Leave a comment

Your email address will not be published. Required fields are marked *