Revision of the Alycaeidae of China, Laos and Vietnam (Gastropoda: Cyclophoroidea) I: The genera Dicharax and Metalycaeus
FIGURE 12. Males of Dicharax species. A – B. Dicharax (?) alticola Páll-Gergely & Hunyadi n. sp., paratype from the type locality, coll. JUO. C – D. Dicharax cristatus (Möllendorff, 1886), 20130911 B, coll. JUO. E – F. Dicharax depressus (Bavay & Dautzenberg, 1912), 20080510 B, coll. JUO. G – H. Dicharax (?) immaculatus Páll-Gergely n. sp. 20110420 E (2 different specimens), coll. JUO. Figures not to scale.
FIGURE 13. Radulae of Dicharax species. A – B. Dicharax (?) alticola Páll-Gergely & Hunyadi n. sp., (paratype from the type locality, 20130913 A, OC 3, coll. JUO). C. Dicharax cristatus (Möllendorff, 1886) (2015 / 56, coll. PGB). D. Dicharax depressus (Bavay & Dautzenberg, 1912) (20080510 B, coll. JUO). E. Dicharax fimbriatus (Bavay & Dautzenberg, 1912) (20081112 B, coll. JUO). F. Dicharax (?) immaculatus Páll-Gergely n. sp (20110420 E, coll. JUO). All images: B. Páll-Gergely.
FIGURE 28. R 2 ribs of Dicharax species. A – B. Dicharax cristatus (Möllendorff, 1886) (20130911 B, coll. JUO). C – D. Dicharax cristatus 20111020 A, coll. JUO. E – H. Dicharax depressus (Bavay & Dautzenberg, 1912) (MAA 1, HNHM 99727). All images: B. Páll-Gergely.
FIGURE 29. Protoconchs of Dicharax species. A – B. Dicharax robustus Páll-Gergely & Hunyadi, n. sp. (20000319, spec. 1, HNHM 99726, paratype from the type locality). C – D. Dicharax cristatus (Möllendorff, 1886) (20100508 A, coll. PGB). E – F. Dicharax depressus (Bavay & Dautzenberg, 1912), MAA 1, Specimen 2. All images: B. Páll-Gergely.
FIGURE 30. Opercula of Dicharax cristatus (Möllendorff, 1886). A – B. MNHN 2012 - 27041. C – D. MNHN 2012 - 27040. E – F. 20100509 A, coll. PGB. All images: B. Páll-Gergely.
FIGURE 24. Shells of Dicharax cristatus (Möllendorff, 1886). A. lectotype (SMF 39231); B. syntype of Alycaeus smithi Fulton, 1907 (NHMUK 1907.5.3.137 – 140). C. SMF 192410 (typical smithi). D. 20070714 B, coll. PGB. Scale represents 5 mm. All photos: B. Páll-Gergely.
FIGURE 27. Shells of Dicharax cristatus (Möllendorff, 1886). A. holotype of Alycaeus simplicilabris Bavay & Dautzenberg, 1912 (MNHN IM- 2012 - 27167). B. 20060109 A. C. MNHN 2012 - 27041. D. 20111021 B, coll. PGB. E. 2011 / 22, coll. HA. F. 2012 / 60, coll. HA. Scale represents 5 mm. All photos: B. Páll-Gergely.