Miscellanea Zoologica Hungarica 11. 1997 (Budapest, 1997)

Hołyńska, M.: A new representative of Mesocyclops thermocyclopoides-circle (Copepoda: Cyclopoida) from India

- No caudal hairs next to medial rim of the leg 4 coxa M. thermocyclopoides Harada, 1931 Dorsum of genital double somite hairy on the proximal half only; no spinules at implantation of either the posterolateral, or anterolateral furcal setae; transverse rows of spinules on the 1., 4-5. and 7-13. segments. Distribution: Malay Peninsula, Indochina and Taiwan. 9. Group of small spinules between the proximal oblique and longitudinal spinule rows on caudal surface of the antennary basis present M. isabellae Dussart & Fernando, 1988 Pediger 5 pilose dorsally; dorsum of genital double somite hairy in the proximal half only; no spinules at implantation of the antero- and posterolateral furcal setae; distal rim of anal segment dorsally fringed with but few minute spinules; transverse rows of spinules on the 1., 4-5., 7-14. antennular segments. Distribution: India, Nepal, Sri Lanka. - Group of small spinules between the proximal oblique and longitudinal spinule rows on caudal surface of the antennary basis absent 10 10. Caudal surface of medial expansion of the leg 4 basis pilose only distally M. granulatus Dussart & Fernando, 1988 Granules along the copulatory duct; transverse ducts of the female genital system "V-shaped" before the connection with copulatory duct; pediger 5 dorsally with hair rows; no spinules at implantation of the antero- and posterolateral furcal setae; distal rim of the anal segment dorsally fringed only with minute spinules; caudal spinule pattern of the antennary basis of "leuckarti-type". Distribution: Indian subcontinent. - Caudal surface of medial expansion of the leg 4 basis both proximally and distally pilose 11 11. Transverse ducts not directed to one another at acute angle ("V-shaped") before the connection with copulatory duct, and curvature of copulatory duct varies from straight to moderate 12 - Transverse ducts in most cases"V-shaped" before the connection with copulatory duct

, and curvature of copulatory duct varies from moderate to strong; if transverse ducts directed to one another obtuse angle (not V-shaped) and/or curvature of copulatory duct slight, or near straight, spinules at implantation of antero- and posterolateral furcal setae absent 13 12. Transverse ducts strongly chitinized; the part of the copulatory duct, connecting copulatory pore and transverse ducts, well visible M. aequatorialis Kiefer, 1929 The "leuckarti-type" spinule pattern on caudal surface of the antennary basis is often supplemented with a group of relatively large spinules next to exopod seta, and/or fields of spinules next to implantation of inner setae and the distal rim of the segment; spinules at implantation of both antero- and posterolateral furcal setae present Distribution: Africa, Israel, Uzbekistan. - Transverse ducts not strongly chitinized; the part of the copulatory duct, connecting copulatory pore and transverse ducts, not visible M. affinis Van de Velde, 1987 "Leuckarti-type" spinule pattern on the caudal surface of antennary basis supplemented with a field of spinules next to implantation of inner setae, group of relatively large spinules next to exopod seta and few spinules near the distal rim of the segment - the latter two elements can be absent; spinules at implantation of posterolateral furcal setae present; spinules at implantation of anterolateral furcal setae can be present or absent. Distribution: New Guinea, Malay Archipelago and Indochina. 13. Spinules at implantation of both the antero- and posterolateral furcal setae present M. dissimilis Defaye & Kawabata, 1993 The "leuckarti-type" spinule pattern on the caudal surface of antennary basis supplemented with a field of spinules near the implantation of inner setae, and rarely a group of spinules near distal rim of the