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A peculiar cave species of Tomocerus (Collembola, Tomoceridae, Tomocerinae) from Vietnam, with a discussion of the postantennal organ and prelabral chaetae in Tomocerinae.

Yu D, Zhang F, Deharveng L - Zookeys (2014)

Bottom Line: Tomocerus postantennalis sp. n. differs from the other PAO-possessing tomocerid, Tomolonus reductus Mills, 1948, mainly in the morphology of PAO, the number of ocelli, the number of chaetae in trochantero-femoral organ and several features of the furca.Besides the presence of PAO, the new species is peculiar in having six prelabral chaetae, instead of four as in other Tomocerus species.The new species is similar to Tomocerus folsomi Denis, 1929 and Tomocerus ocreatus Denis, 1948 in the type of dental spines but different from them in the body colour, the relative length of antennae to body, the number of unguis inner teeth and the number of mucronal intermediate teeth.

View Article: PubMed Central - HTML - PubMed

Affiliation: School of Life Sciences, Nanjing University, Nanjing 210093, China.

ABSTRACT
The first Tomocerus species with a postantennal organ (PAO) in the adult stage is described from Vietnam. Tomocerus postantennalis sp. n. differs from the other PAO-possessing tomocerid, Tomolonus reductus Mills, 1948, mainly in the morphology of PAO, the number of ocelli, the number of chaetae in trochantero-femoral organ and several features of the furca. The new species is placed in Tomocerus because of the presence of a toothlet on the outer basal mucronal tooth and the absence of the diagnostic character states of Plutomurus Yosii, 1956 and Aphaenomurus Yosii, 1956. Besides the presence of PAO, the new species is peculiar in having six prelabral chaetae, instead of four as in other Tomocerus species. The new species is similar to Tomocerus folsomi Denis, 1929 and Tomocerus ocreatus Denis, 1948 in the type of dental spines but different from them in the body colour, the relative length of antennae to body, the number of unguis inner teeth and the number of mucronal intermediate teeth.

No MeSH data available.


Related in: MedlinePlus

Tomocerus postantennalis sp. n. 12 dorsal face of manubrium (right side; prominent chaetae arrowed) 13 disto-dorsal chaetae on manubrium (left side) 14 dental spines (left side) 15 feathered chaeta on dens 16 basal teeth of left mucro 17 right mucro 18 body chaetotaxy. Scale bars: 12, 14 = 100μm; 13, 17 = 50 μm; 15, 16 = 21 μm; 18 = 400 μm. Large circles: macrochaetae; small circles: mesochaetae; wavy lines: bothriotricha; circles with a slash: pseudopores.
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Figure 3: Tomocerus postantennalis sp. n. 12 dorsal face of manubrium (right side; prominent chaetae arrowed) 13 disto-dorsal chaetae on manubrium (left side) 14 dental spines (left side) 15 feathered chaeta on dens 16 basal teeth of left mucro 17 right mucro 18 body chaetotaxy. Scale bars: 12, 14 = 100μm; 13, 17 = 50 μm; 15, 16 = 21 μm; 18 = 400 μm. Large circles: macrochaetae; small circles: mesochaetae; wavy lines: bothriotricha; circles with a slash: pseudopores.

Mentions: Figs 1–18


A peculiar cave species of Tomocerus (Collembola, Tomoceridae, Tomocerinae) from Vietnam, with a discussion of the postantennal organ and prelabral chaetae in Tomocerinae.

Yu D, Zhang F, Deharveng L - Zookeys (2014)

Tomocerus postantennalis sp. n. 12 dorsal face of manubrium (right side; prominent chaetae arrowed) 13 disto-dorsal chaetae on manubrium (left side) 14 dental spines (left side) 15 feathered chaeta on dens 16 basal teeth of left mucro 17 right mucro 18 body chaetotaxy. Scale bars: 12, 14 = 100μm; 13, 17 = 50 μm; 15, 16 = 21 μm; 18 = 400 μm. Large circles: macrochaetae; small circles: mesochaetae; wavy lines: bothriotricha; circles with a slash: pseudopores.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4042826&req=5

Figure 3: Tomocerus postantennalis sp. n. 12 dorsal face of manubrium (right side; prominent chaetae arrowed) 13 disto-dorsal chaetae on manubrium (left side) 14 dental spines (left side) 15 feathered chaeta on dens 16 basal teeth of left mucro 17 right mucro 18 body chaetotaxy. Scale bars: 12, 14 = 100μm; 13, 17 = 50 μm; 15, 16 = 21 μm; 18 = 400 μm. Large circles: macrochaetae; small circles: mesochaetae; wavy lines: bothriotricha; circles with a slash: pseudopores.
Mentions: Figs 1–18

Bottom Line: Tomocerus postantennalis sp. n. differs from the other PAO-possessing tomocerid, Tomolonus reductus Mills, 1948, mainly in the morphology of PAO, the number of ocelli, the number of chaetae in trochantero-femoral organ and several features of the furca.Besides the presence of PAO, the new species is peculiar in having six prelabral chaetae, instead of four as in other Tomocerus species.The new species is similar to Tomocerus folsomi Denis, 1929 and Tomocerus ocreatus Denis, 1948 in the type of dental spines but different from them in the body colour, the relative length of antennae to body, the number of unguis inner teeth and the number of mucronal intermediate teeth.

View Article: PubMed Central - HTML - PubMed

Affiliation: School of Life Sciences, Nanjing University, Nanjing 210093, China.

ABSTRACT
The first Tomocerus species with a postantennal organ (PAO) in the adult stage is described from Vietnam. Tomocerus postantennalis sp. n. differs from the other PAO-possessing tomocerid, Tomolonus reductus Mills, 1948, mainly in the morphology of PAO, the number of ocelli, the number of chaetae in trochantero-femoral organ and several features of the furca. The new species is placed in Tomocerus because of the presence of a toothlet on the outer basal mucronal tooth and the absence of the diagnostic character states of Plutomurus Yosii, 1956 and Aphaenomurus Yosii, 1956. Besides the presence of PAO, the new species is peculiar in having six prelabral chaetae, instead of four as in other Tomocerus species. The new species is similar to Tomocerus folsomi Denis, 1929 and Tomocerus ocreatus Denis, 1948 in the type of dental spines but different from them in the body colour, the relative length of antennae to body, the number of unguis inner teeth and the number of mucronal intermediate teeth.

No MeSH data available.


Related in: MedlinePlus