Notodromas trulla Smith & Kamiya, 2014, n. sp.
Creators
Description
Comparisons between Notodromas trulla n. sp. and other Notodromas species
Notodromas monacha (O. F. Müller, 1776) —This is the type species of the genus, and found in Western Europe (see review of its Western European distribution in Meisch 2000), Eastern Europe, European part of Russia, southern to northern Caucasus, western Siberia, Kazakhstan and Altai (Bronshtein 1947), Central Asia (Sars 1903), China (Chen 1982) (Fig. 1A), USA (Sharpe 1908), and Canada (Delorme 1970). The carapaces of both males and females of N. monacha are generally very similar to Notodromas trulla n. sp., with the exception of the females' postero-ventral flange (Figs 2 C, D, & H). In N. monacha the females' flange on the left valve overlaps the right (Fig. 3 G), while in Notodromas trulla n. sp. the flange on the right valve overlaps the left (Fig. 3F).
Notodromas monacha also has a noticeably shorter aesthetasc Y on the antennae compared to Notodromas trulla n. sp., and instead of the spoon-shaped seta on the males' fifth limb right palp, which is a characteristic feature of Notodromas trulla n. sp., has an apical seta (Fig. 7 H, marked with black triangle). The claws of the caudal ramus are sub-equal in length in Notodromas trulla n. sp., whereas the claw Gp is typically shorter than Ga in N. monacha (e.g. Sywula 1974; Meisch 2000) (Fig. 7 J). Additionally, the distal section of the caudal ramus of N. monacha is noticeably more slender than that of Notodromas trulla n. sp. The most significant difference, however, is the shape and structure of the hemipenes (Figs 7 K, 8B). Those of N. monacha are larger, and wider distally, with a distinctive lobe on the inner edge (Fig. 7 K, marked with black triangle). The hemipenes of Notodromas trulla n. sp. are more sub-rectangular, and with no lobe on the inner edge. The internal structures of the two species' hemipenes are sufficiently different to make homologies of some parts difficult; Notodromas trulla n. sp. has two internal, rounded lobe-like structures (Fig. 7G, labelled as 'a' and 'b') that are not present in N. monacha, while N. monacha has some internal projections that appear absent in Notodromas trulla n. sp. (Fig. 7 K, labelled as 'c' and 'd').
Notodromas sinensis Neale & Zhao, 1991 —This species was described from specimens collected from a lake in Heilongjiang, Northeast China, and has also been recovered from other localities in China and the far east of Russia (Zhao 1990; Schornikov & Trebukhova 2001; Schornikov 2004; Zenina & Schornikov 2008) (Fig. 1A). It closely resembles N. monacha, differing in the morphology of the caudal ramus attachment, male fifth limb palps, details of the hemipenes, and by having a “more robust” sixth limb (Neale & Zhao, 1991). The carapaces of N. sinensis and N. monacha are very similar, with only the female posterior flange a slightly different shape in ventral view, indicating that perhaps these species are the most closely related in the genus. Differences between Notodromas trulla n. sp. and N. sinensis are therefore similar to those between Notodromas trulla n. sp. and N. monacha (see above).
Notodromas persica Gurney, 1916 — With a distribution in Iran (Löffler 1961; Bronshtein 1947), Western Europe and the circum-Mediterranean region (Gauthier 1928; Meisch 2000), this species is much more restricted in distribution than N. monacha. Meisch (2000) suggested that based on the shape of the projection on the female carapace, the record of N. monacha from Jakutsk, Siberia (Pietrzeniuk 1977) was a misidentification of N. persica. The figure provided by Pietrzeniuk (1977) of a female adult specimen does resemble N. persica, but as Pietrzeniuk (op. cit.) reported only one juvenile (p. 334), it is not clear if the adult specimen figured by her came from Jakutsk. As features for species determination only appear in the adult stage, a single juvenile cannot be identified to species level, and this record should therefore be placed in open nomenclature. The carapaces of both sexes of N. persica are similar to those Notodromas trulla n. sp., although they are slightly less elongate (Figs 2 E & F) and the posterior flange of the female is different in shape (Figs 2 I & 3H). The aesthetasc Y of the antenna is proportionally shorter in length to that of Notodromas trulla n. sp. and thus similar to that of Notodromas monacha. The right male fifth limb palp of N. persica has a proportionally longer apical clasping hook compared with Notodromas trulla n. sp., and has a tiny apical seta near the base of the hook (Fig. 7 L, marked with black triangle); this contrasts with the much longer spoon-shaped sub-apical seta found in Notodromas trulla n. sp. The caudal ramus of the male is more strongly curved and the seta sp is longer than in Notodromas trulla n. sp. (Fig. 7 N). The hemipenes of N. persica are smaller than both N. monacha and Notodromas trulla n. sp., and internally they appear to be the most simple, with neither of the two internal lobes seen in Notodromas trulla n. sp. (Figs 7 O & 8C).
Notodromas oculata Sars, 1903 —This species was described from two female specimens reared from mud collected in Sumatra, and later this species was reported from Taiwan (Klie 1938) and Sri Lanka (Neale 1984) (Fig. 1A). Published figures of this species are restricted to the female carapace and caudal ramus, and it differs from Notodromas trulla n. sp. in the following: the carapace is smaller, ranging from 0.59 to 0.75 mm, more elongate (h/ l = 0.62), and it lacks any posterior-ventral projection.
Notodromas serrata Deb, 1984 —This species was described from specimens collected from India (Deb 1984) (Fig. 1A), and has not been reported since. The rudimentary nature of the initial description denies a detailed comparison with other Notodromas species, and George & Martens (2003) questioned its placement in the genus.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Notodromadidae
- Genus
- Notodromas
- Kingdom
- Animalia
- Order
- Podocopida
- Phylum
- Arthropoda
- Species
- trulla
- Taxonomic status
- sp. nov.
- Taxon rank
- species
- Taxonomic concept label
- Notodromas trulla Smith & Kamiya, 2014
References
- Muller, O. F. (1776) Zoologiae Danicae Prodromus, seu Animalium Daniae et Norvegiae Indigenarum characters, nomina, et synonyma imprimis popularium. Havniae, XXXII, 1 - 282.
- Meisch, C. (2000) Freshwater Ostracoda of Western and Central Europe. In: Schwoerbel, J., Zwick, P. (Eds.), Sußwasserfauna von Mitteleuropa 8 / 3. Spektrum Akademischer Verlag, Heidelberg, Berlin, 522 pp.
- Bronshtein, Z. S. (1947) Ostracoda Presnykh Vod. Fauna SSSR, Rakoobraznye, Tom 2, Vyp. 1. (Zoologicheskii Institut, Akademiya Nauk SSSR, Moscow). English translation 1988: Fresh-water Ostracoda. Fauna of the USSR. Crustaceans. Vol. 2. No. 1. Amerind Publishing Co. Pvt. Ltd., New Delhi, xv + 470 pp.
- Sars, G. O. (1903) Fresh-water Entomostraca from China and Sumatra. Archiv for Mathematik og Naturvidenskab, B, 25, 3 - 44.
- Sharpe, R. W. (1908) A further report on the Ostracoda of the United States National Museum. Proceedings of the United States National Museum, 35, 399 - 430. http: // dx. doi. org / 10.5479 / si. 00963801.35 - 1651.399
- Delorme, D. L. (1970) Freshwater ostracodes of Canada. Part IV. Families Ilyocyprididae, Notodromadidae, Darwinulidae, Cytherideidae, and Entocytheridae. Canadian Journal of Zoology, 48, 1251 - 1259. http: // dx. doi. org / 10.1139 / z 70 - 214
- Sywula, T. (1974) Malzoraczki (Ostracoda). Fauna Slodkowodna Polski, 24, 1 - 315.
- Neale, J. W. & Zhao, Y. (1991) A new species of the fresh-water genus Notodromas (Ostracoda) from Heilongjiang, Northeast China. Acta Micropalaeontologica Sinica, 8, 153 - 170.
- Zhao, Y. (1990) Preliminary studies on effects of different pH values on carapaces of living ostracods. Acta Micropalaeontologica Sinica, 7, 1 - 8. [in Chinese]
- Schornikov, E. I. & Trebukhova, Y. A. (2001) Ostracods of brackish and fresh waters of southwestern coast of Peter The Great Bay. In: Kasyanov, V. L., Vaschenko, M. A., & Pitruk. D. L. (Eds.), The state of environment and biota of the southwestern part of Peter The Great Bay and the Tumen River Mouth. Dal'nauka, Vladivostok, pp. 56 - 84.
- Schornikov, E. I. (2004) Crustacea: Ostracoda. In: Tyurin, A. N. & Drozdov, A. L. (Eds.), Far-Eastern Marine Biospherical Reserve, Biota. V. 2, Vladivostok, pp. 458 - 465. [In Russian]
- Zenina, M. A. & Schornikov, E. I. (2008) Ostracod assemblages of the freshened part of Amursky Bay and lower reaches of the Razdolnaya River (Sea of Japan). In: Lutaenko, K. A. & Vaschenko, M. A. (Eds.), Ecological studies and the state of the ecosystem of Amursky Bay and the estuarine zone of the Razdolnaya River (Sea of Japan), Volume 1. Dal'nauka, Vladivostok, pp. 156 - 185.
- Gurney, R. (1916) On some fresh-water Entomostraca from Ceylon. Proceedings of the Zoological Society of London, 1916, 333 - 343. http: // dx. doi. org / 10.1111 / j. 1096 - 3642.1916. tb 02016. x
- Loffler, H. (1961) Beitrage zur Kenntnis der Iranischen Binnengewasser II Regional-limnologische Studie mit besonderer Berucksichtigung der Crustaceenfauna. Internationale Revue der Gesamten Hydrobiologie und Hydrographie, 46, 309 - 406. http: // dx. doi. org / 10.1002 / iroh. 19610460304
- Gauthier, H. (1928) Recherches sur la faune des eaux contientales de l'Algerie et de la Tunisie. Theses presentees a la Faculte des Sciences de l'Universite de Paris, ser. A, 1160, 1 - 423.
- Klie, W. (1938) Ostracoden aus Formosa. Bulletin of the Biogeographical Society of Japan, 8, 21 - 33.
- Neale, J. W. (1984) The freshwater Ostracoda. In: Fernando, C. H. (Ed.), Ecology and Biogeography in Sri Lanka. Monographiae Biologicae, 57, Dr W. Junk Publishers, The Hague, pp. 171 - 194.
- Deb, M. (1984) On a small collection of freshwater ostracods (Crustacea) from Bihar, India. Journal of the Zoological Society of India, 36, 35 - 43.
- George, S. & Martens, K. (2003) On a new species of the genus Newnhamia King, 1855 (Crustacea, Ostracoda) raised from Chalakkudy River sand, (Kerala, India), with notes on the taxonomy and distribution of the Notodromadidae. Hydrobiologia, 497, 25 - 37.