Pycnogonum spatium Takahashi 2007
| Autor: | Lee, Damin, Kim, Won |
|---|---|
| Rok vydání: | 2020 |
| Předmět: | |
| DOI: | 10.5281/zenodo.3706315 |
| Popis: | Pycnogonum spatium Takahashi et al. 2007 Figures 3 C���D, 5A���F Pycnogonum spatium Takahashi et al., 2007: 73���75, fig. 5 Material examined. Holotype, ICHUM3172, Southeast of Amami Island, Kagoshima, Japan, 28��09.20���N, 129��31.50���E, 332���334 m, beam trawl, Y. Takahashi, 25 May 2004. Remarks. Although Takahashi et al. (2007) described P. spatium as having granular integument, the body integument being pitted (Fig. 3C), and only the dorsal surface of legs being granulated and pitted (Fig. 3D). The proboscis length was recorded as 0.47 mm, while it is actually 0.89 mm (Fig. 5B). Takahashi et al. (2007) determined the P. spatium holotype to be a female based on gonopores being on the dorsal surface of coxa 2 of all legs (Fig. 5F), however the present observation reveals that there is a gonopore on the ventrodistal surface of coxa 2 on each fourth leg (Fig. 5E), which shows the trait of a male. In this case, we can suggest two possibilities, the first being that the specimen is a hermaphrodite and secondly the female gonopores were misdiagnosed and represent coxal pelliculae (vide Staples, 2007), in which case the specimen is a male belonging to the subgenus Nulloviger. To solve this problem, we need additional collection of specimens and research to distinguish the coxal pellicula from the gonopore. Published as part of Lee, Damin & Kim, Won, 2020, New species of Pycnogonum (Pycnogonida: Pycnogonidae) from Green Island Taiwan, with an additional note on the holotype of P. spatium, pp. 122-130 in Zootaxa 4750 (1) on pages 128-129, DOI: 10.11646/zootaxa.4750.1.6, http://zenodo.org/record/3702903 {"references":["Takahashi, Y., Dick, M. H. & Mawatari, S. F. (2007) Sea spiders (Arthropoda: Pycnogonida) from waters adjacent to the Nansei Islands of Japan. Journal of Natural History, 41, 61 - 79. https: // doi. org / 10.1080 / 00222930601121783","Staples, D. A. (2007) A new species of Colossendeis (Pycnogonida: Colossendeidae) together with records from Australian and New Zealand waters. Memoirs of Museum Victoria, 64, 79 - 94. https: // doi. org / 10.24199 / j. mmv. 2007.64.8"]} |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|