Cardiomya minerva Lima & Oliveira & Absal��o 2020, sp. nov
| Autor: | Lima, Tarcilla Carvalho De, Oliveira, Cl��o Dilnei de Castro, Absal��o, Ricardo Silva |
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| Rok vydání: | 2020 |
| Předmět: | |
| DOI: | 10.5281/zenodo.3795749 |
| Popis: | Cardiomya minerva sp. nov. urn:lsid:zoobank.org:act: B7AF183B-CE39-4084-A9B1-E0F366458513 Fig. 5 A���F Diagnosis Quadrangular shell flank, very short truncated rostrum, posterodorsal margin curved upwards, extending above the umbones; external sculpture composed of six posterior radial ribs, rostrum with commarginal growth lines only. Etymology This species is named after the character Minerva McGonagall, from the Harry Potter series of books written by the British J.K. Rowling. The name is employed as a noun in apposition. Material examined Holotype BRAZIL ��� Alagoas state ��� [1i]; Macei��, Praia da Avenida; 10 m depth; 10 Apr. 1990; IBUFRJ 5785. Other type material PORTUGAL ��� [12v and fragments], syntypes of Cardiomya cadiziana Huber, 2010 [= replacement name for Cardiomya curta (Jeffreys, 1876)]; off Algarve; 36��54���00��� N, 8��14���30��� W; 523���684 m depth; USNM 172032 ��� [5v], syntypes of Cardiomya cadiziana; S��o Pedro Canyon; 39��55���00��� N, 9��56���00��� W; 1818 m depth; USNM 172033 ��� [4v], syntypes of Cardiomya cadiziana; S��o Pedro Canyon; 39��42���00��� N, 9��43���00��� W; 1097���2003 m depth; USNM 172034. SURINAME ��� [1v], holotype of Cardiomya surinamensis van Regteren Altena, 1971; 06��22.5��� N, 55��10��� W; 20 m depth; RMNH.MOL.55387. Description Shell small (length 4.3 mm; height 3.2 mm). Shell flank quadrangular, umbones raised. Anterodorsal margin forming a shoulder, anterior and ventral and margin rounded, little angulated. Rostrum very short, truncated, posteroventral sinuation shallow, posterodorsal margin curved upwards, extending above the umbones. External sculpture of six radial ribs on the posterior half of the shell flank; rostrum with commarginal growth lines only. Geographic distribution Only known from the type locality. Remarks The most similar species to Cardiomya minerva sp. nov. are Cardiomya surinamensis van Regteren Altena, 1971 (Fig. 5 G���H) and Cardiomya cadiziana Huber, 2010 (Fig. 5 I���J). These two species can be distinguished from Cardiomya minerva sp. nov. by their trapezoidal shell flank, external sculpture composed of incomplete radial ribs on anterior region of the shell flank. Additionally, C. cadiziana exhibits a shorter rostrum, with several faint radial lines, and straight posterodorsal margin, not extending above the umbones. Published as part of Lima, Tarcilla Carvalho De, Oliveira, Cl��o Dilnei de Castro & Absal��o, Ricardo Silva, 2020, Small, rare and little known: new records and species of Cardiomya (Bivalvia: Cuspidariidae) from Brazil, pp. 1-20 in European Journal of Taxonomy 619 on pages 11-13, DOI: 10.5852/ejt.2020.619, http://zenodo.org/record/3777241 |
| Databáze: | OpenAIRE |
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