Kovács I. (szerk.): A Magyar Természettudományi Múzeum évkönyve 78. (Budapest 1986)

Taiti, S., Ferrara, F. ; Schmalfuss, H.: Chileoniscus marmoratus gen. et sp. n. from Chile (Oniscidea, Scleropactidae)

66 S. TAITI, F. FERRARA & H. SCHMALFUSS leg. Pena, 26. IV. 1980 (Stuttgart, Isopod collection no. T205). — 1 9, Chile, Los Maitenes, N Amolanas, leg. Pena, 27. IX. 1980 (Stuttgart, Isopod collection no. T206). Description — Maximal dimensions : rf 4 mm long, 9 6 mm long. Reddish-brown mottled with yellow. Dorsum with spatuliform and, along the posterior margins of segments, fanshaped scale-spines (Fig. 6). Cephalon (Figs 3-5) with a slight depression in the middle of the frons. Pereon-segment I (Figs 6-7) with largely rounded postero-lateral angle. Pleon-epimera V (Fig. 8) slightly convergent, ventrally "embracing" uropod-protopodites. Telson (Fig. 8) with lateral margins slightly sinuous and broadly rounded apex. Antennule (Iig. 10) with some superimposed aesthetascs on distal half of third segment. Antenna (Fig. 11) : fifth joint of peduncle as long as flagellum, second joint of flagellum about three times as long as first joint, with two rows of aesthetascs. Uropods as in Fig. 15. For mouthparts see Figs 12-14. Male characters — Pereopod I (Fig. 16) with a sparse brush of "fringed" spines on sternal part of merus and carpus. Pereopod VII (Fig. 17) : ischium with sternal margin almost straight and distally "depressed"; merus with a longitudinal ridge on the tergal part. Pleopod I (Fig. 18): exopodite with a long acute posterior point bent outwards, endopodite with distal part recurved in a ventral direction. In situ the apical part is directed ventrally and "embraced" by the recurved distal parts of the exopodites III and IV. When dissected and mounted on a slide, the apex of endopodite I appears to be directed medially (as in Fig. 18) or in any other direction according to its position in the micropreparation. Pleopod II as in Fig 19. References ANDERSSON, A. (1960): South American terrestrial Isopods in the collection of the Swedish State Museum of Natural History. — Arkiv Zool. 2. Ser. 12: 537-570. FERRARA, F. (1977): Osservazioni sistematiche sui generi Exzaes Barnard 1932 e Hekelus Barnard 1932 (Crustacea Oniscoidea) con descrizione di una nuova specie. — Rev. Zool. afr. 91: 607-617. HOLDICH, D. M., LINCOLN, R. J. & ELLIS, J. P. (1984): The Biology of Terrestrial Isopods: Terminology and Classification. — Symp. zool. Soc. London 53: 1-6. SCHMALFUSS, H. (1980) : Die ersten Landasseln aus Dominikanischem Bernstein mit einer systematischphylogenetischen Revision der Familie Sphaeroniscidae (Stuttgarter Bernsteinsammlung: Crustacea, Isopoda, Oniscoidea). — Stuttgarter Beitr. Naturk. Ser. B 61: 1-12. VANDEL, A. (1968): I. Isopodes terrestres. — In Mission zoologique belge aux îles Galapagos et en Ecuador (N. et J. Leleup. 1964-65) 1: 37-168. Authors' adresses: DR. STEFANO TAITI and DR. FRANCO FERRARA Centro di Studio per la Faunistica ed Ecologia tropicali del Consiglio Nazionale délie Ricerche Via Romana, 17 1-50125 Firenze/Italia DR. HELMUT SCHMALFUSS Staatliches Museum für Naturkunde Rosenstein 1 D-7000 Stuttgart/BRD