Ischnochiton feliduensis E.A. Smith, 1903

Dell’Angelo, Bruno, Gori, Sandro, Baschieri, Leonardo & Bonfitto, Antonio, 2010, Chitons (Mollusca, Polyplacophora) from the Maldive islands, Zootaxa 2673 (1), pp. 1-38 : 7

publication ID	https://doi.org/10.11646/zootaxa.2673.1.1
persistent identifier	https://treatment.plazi.org/id/03D7EE78-FFD2-FF8C-FF7F-FEA6FBADB63D
treatment provided by	Felipe (2021-08-23 07:23:52, last updated 2021-08-28 16:28:42)
scientific name	Ischnochiton feliduensis E.A. Smith, 1903
status

Treatment

( Figures 3K–M View FIGURE 3 , 12C)

Ischnochiton feliduensis E.A. Smith 1903: 619 , pl. 36, figs 11–14; Nierstrasz 1905: 30; 1906: 151, 168.

Ischnochiton (I.) feliduensis ; Kaas & Van Belle 1990: 127, fig. 54.

Type: Holotype NHM 1903.9.17.25

Type locality: Maldive Archipelago , Felidu Atoll .

Material examined: Holotype, a dry specimen without the soft parts, 6 x 4 mm.

Remarks: This species is only known from the holotype, and has been redescribed by Kaas & Van Belle (1990). We present an illustration of the preserved holotype ( Fig. 12C) and of a detached plate ( Figs 3K–M View FIGURE 3 ), where the characteristic sculpture of the rough tegmentum with granules arranged quincuncially on lateral areas, and in longitudinal riblets on central area is clearly visible.

Distribution: Ischnochiton feliduensis is known only from the Maldive Islands.

References

Kaas, P. & Van Belle, R. A. (1990) Monograph of Living Chitons (Mollusca: Polyplacophora). Volume 4. Suborder Ischnochitonina: Ischnochitonidae: Ischnochitoninae (continued). Additions to Volumes 1, 2 and 3. E. J. Brill, Leiden - New York - Kobenhavn - Koln, 402 pp.

Nierstrasz, H. F. (1905) Die Chitonen der Siboga Expedition. Siboga Expeditie, 48, 1 - 114, pls 1 - 8.

Nierstrasz, H. F. (1906) Remarks on the Chitonidae. Tijdschrift der Nederlandsche Dierkundige Vereeniging, (2) 10, 141 - 172, pl. 3.

Smith, E. A. (1903) Marine Mollusca. In: Gardiner, J. S., The Fauna and Geography of the Maldive and Laccadive Archipelagoes. Cambridge, University Press, 589 - 630, pls 35 - 36.

Figures

FIGURE 3A–J, Ischnochiton sp., Maldive, living specimen, MLD03A. A, complete specimen, lateral view. B, detail of valves vii viii, lateral view. C, close-up of head valve. D, detail of the tegmentum covered by very small apical caps patterned with a semi-spherical layout. E–F, half detached intermediate valve, ventral views. G, ventral (left) and dorsal (right) girdle elements in situ. H, detail of perinotum elements in situ. I, J, dorsal and lateral views (respectively) of the apical caps patterned with a semi-spherical layout. K–M, Ischnochiton feliduensis E.A. Smith, 1903, Maldive, Felidhoo Atoll, Holotype, BMNH 1903.9.17.25, an intermediate valve detached (not coated). K, dorsal view. L, close-up of K. M, granules of the central area. Scale bars 1 mm: A; 500 µm: C, K; 100 µm: B, E, F, L; 50 µm: D, G, I, M; 10 µm: H, J.