Lepidochitona rolani Kaas & Strack, 1986

Dell’Angelo, Bruno, Schwabe, Enrico, Gori, Sandro, Sosso, Maurizio & Bonfitto, Antonio, 2014, Chitons (Mollusca, Polyplacophora) from São Tomé and Príncipe Islands, African Invertebrates 55 (2), pp. 171-200 : 187

Lepidochitona rolani Kaas & Strack, 1986

Figs 6A–F

Lepidochitona rolani Kaas & Strack 1986: 83 , figs 1, 16–28; Kaas & Van Belle 1987: 33, fig. 15; Kaas 1991: 91; Rolán 2005: 27, fig. 3. Type material: Holotype in MNCN. Paratypes: Many specimens in several institutions (see Kaas & Strack 1986). Type locality: Cape Verde Archipelago, São Vicente, Calhão , intertidal.

Material examined: ST06: 1 specimen, length 2 mm, and 7 valves (2 head, maximum width 2.2 mm, and 5 intermediate, maximum width 3 mm) ( BD 120A ); ST11: 3 valves (2 intermediate, maximum width 2.2mm, and 1 tail, width 2.1 mm) ( BD 120B ); PR05: 5 intermediate valves, maximum width 2.5 mm ( ER) ; PR07: 13 valves (2 head, maximum width 2.8 mm, 10 intermediate, maximum width 3.7 mm, and 1 tail, width 1.6 mm) ( BD 120C ) .

Distribution: Cape Verde Archipelago, and São Tomé and Príncipe Islands.

Comparison and remarks: The material examined was a unique, small living specimen ( Fig. 6A ) and many separate valves, well defined by the rounded intermediate valves, and by the characteristic microsculpture ( Figs 6D, 6F ). All are characters that agree well with the original description given by Kaas and Strack (1986).

Figures

Fig. 6. (A–F) Lepidochitona rolani Kaas & Strack, 1986, São Tomé and Príncipe Islands: (A) complete specimen from ST06, (B–D) PR07, intermediate valve, (B–C) dorsal and frontal views, (D) detail of the sculpture,(E–F) ST11,tail valve,(E)dorsal view,(F) detail of the sculpture;(G–L) Acanthochitona crinita (Pennant, 1777), São Tomé Island, ST03, intermediate valve: (G–I) dorsal, lateral and frontal views, (J) detail of the sculpture, (K–L) detail of granules in different views. Scale bars = 1 mm (A, B, E); 800 μm (G, I); 600 μm (H); 200 μm (F); 100 μm (D, J); 80 μm (L); 60 μm (K).