Phylogenetic classification of the family Terebridae (Neogastropoda: Conoidea) Author Fedosov, Alexander E A. N. Severtsov Institute of Ecology and Evolution of Russian Academy of Sciences, Leninskiy Prospect, 33, Moscow 119071, Russia Author Malcolm, Gavin Bird Hill, Barnes Lane, Milford on Sea, Hampshire, UK Author Terryn, Yves Kapiteinstraat 27, 9000 Gent, Belgium Author Gorson, Juliette Department of Chemistry, Hunter College Belfer Research Center, New York, NY 10021, USA; 5 Division of Invertebrate Zoology, American Museum of Natural History, New York, NY 10024, USA; 6 Program in Biology, Graduate Center, City University of New York, New York, NY 10016, USA; Author Modica, Maria Vittoria Stazione Zoologica Anton Dohrn, Naples, Italy Author Holford, Mandë Department of Chemistry, Hunter College Belfer Research Center, New York, NY 10021, USA; 5 Division of Invertebrate Zoology, American Museum of Natural History, New York, NY 10024, USA; 6 Program in Biology, Graduate Center, City University of New York, New York, NY 10016, USA; Programs in Biology, Chemistry & Biochemistry, Graduate Center, City University of New York, New York, NY 10016, USA; 9 Department of Biochemistry, Weill Cornell Medicine, Cornell University, New York, NY 10021, USA. Author Puillandre, Nicolas Institut Systématique Evolution Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, 57 rue Cuvier, CP 26, 75005 Paris, France nicolaspuillandre@gmail.com text Journal of Molluscan Studies The Malacological Society of London 2019 2020-01-09 85 4 359 388 journal article 10.1093/mollus/eyz004 6784a642-4e5b-4726-b560-b7b6ed83e0bc 4469844 Genus Gradaterebra Cotton & Godfrey, 1932 ( Fig. 10D ) Type species: Gradaterebra scalariformis Cotton & Godfrey, 1932 ; OD. Diagnosis : Shell small ( < 25 mm ), often dull-coloured, with flattened tobulbouswhorls; axialsculptureof prominentribs; spiralsculpture absent, microscopic or represented by fine cords; last whorl inflated. Distribution: Indian and SW Pacific Oceans. Remarks. The genus mainly comprises small species from Australia and South Africa, which can be differentiated based on adult size < 25 mm . Figure 10. Genera defined solely by shell morphology. A. Terebra bathyrhaphe lectotype, NHMUK 1873.8.6.10/1, Gulf of Yedo, 35 ° 35 'N , 139 ° 48 'E , 6–25 fms (= 11–46 m), 24.8 mm. B. Hastulopsis melanachme lectotype, NMHUK 1873.8.6.11/1, Cape Sima, Japan, 18 fms (= 33 m), 17.8 mm. C. Terebra bifrons holotype, NHMUK 1968237, Japan, 51.0 mm. D. Gradaterebra scalariformis , SAM D-110176, Newland Head, S Australia, 20 fms (= 37 m), 12.1 mm. E. Terebra circumcincta holotype, NHMUK 1978150, Red Sea (erroneous?), 38.0 mm. F. Microtrypetes iola holotype, ANSP 155289, Mazatlan, Mexico, 20 fms (= 37 m), 14.0 mm. Included species: Gradaterebra scalariformis (Cotton & Godfrey, 1932) 4 n. comb .; G. assecla (Iredale, 1924) 4 n. comb .; G. capensis (E. A. Smith, 1873) 4 n. comb .; G. easmithi (Aubry, 1999) 4 n. comb .; G. kowiensis (Turton, 1932) 4 n. comb .; G. lightfooti (E. A. Smith, 1899) 4 n. comb .; G. ninfae (Campbell, 1961) 4 n. comb .; G. pilsbryi (Aubry, 1999) 4 n. comb .; G. planecosta (Barnard, 1958) 4 n. comb .; G. severa (Melvill, 1897) 4 n. comb .; G. sorrentense (Aubry, 1999) 4 n. comb .; G. taylori (Reeve, 1860) 4 n. comb .