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. 2015:22:29.
doi: 10.1051/parasite/2015029. Epub 2015 Oct 29.

A new species of Torrestrongylus (Trichostrongylidae, Anoplostrongylinae) from Macrotus waterhousii (Chiroptera: Phyllostomidae) in Central Mexico

Juan Manuel Caspeta-Mandujano  1 , Jorge Luis Peralta-Rodríguez  2 , María Guadalupe Galindo-García  3 , Francisco Agustín Jiménez  4
Affiliations

A new species of Torrestrongylus (Trichostrongylidae, Anoplostrongylinae) from Macrotus waterhousii (Chiroptera: Phyllostomidae) in Central Mexico

Juan Manuel Caspeta-Mandujano et al. Parasite. 2015.

Abstract
in English, French

A new species of nematode, Torrestrongylus tetradorsalis n. sp., is described herein, based on specimens recovered from the small intestine of the leaf-nosed bat, Macrotus waterhousii, from the Biosphere Reserve "Sierra de Huautla" in the state of Morelos, Mexico. The new species is included in Torrestrongylus because it features a bursa of the type 3 - 2, a divided cephalic vesicle with an anterior half in the shape of an umbrella, and a posterior widened half. The new species can be distinguished from the only other congener T. torrei Pérez-Vigueras, 1935 by four key features: first, by the absence of cervical alae in both males and females; second, by the relatively longer second half of the cephalic cap; third, by the configuration of the dorsal ray, that does not have a medial terminal ray, and finally, by the structure of the spicules. This is the second species in the genus, previously known from bats of the families Phyllostomidae and Molossidae in Cuba, and now in Mexico.

Une nouvelle espèce de nématode, Torrestrongylus tetradorsalis n. sp. est décrite ici, à partir de spécimens collectés dans l’intestin grêle du chiroptère Phyllostomidae Macrotus waterhousii, de la Réserve de la Biosphère « Sierra de Huautla » dans l’État de Morelos au Mexique. La nouvelle espèce est incluses dans Torrestrongylus car elle possède une bourse de type 3-2, une vésicule céphalique divisée avec une moitié antérieure en forme de parapluie et une moitié postérieure élargie. La nouvelle espèce est distinguée de la seule espèce congénère T. torrei Pérez-Vigueras 1935 par quatre caractéristiques clés ; premièrement l’absence d’ailes cervicales chez les mâles et les femelles ; deuxièmement, la seconde moitié de la capsule céphalique relativement plus longue ; troisièmement, la configuration du rayon dorsal, qui ne possède pas de rayon médian terminal ; finalement, par la structure des spicules. Ceci est la deuxième espèce du genre, déjà connu des chauves-souris des familles Phyllostomidae et Molossidae à Cuba, et maintenant au Mexique.

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Figures

Figures 1–12.
Figures 1–12.
Torrestrongylus tetradorsalis n. sp. 1: Anterior end of male, ventral view, showing the esophagus and the relative positions of the nerve ring and deirids; note separation of cuticular projection in anterior vesicle. 2: Anterior end of female, lateral view showing the relative position of the nerve ring, deirid, and excretory pore; note continuous cuticular expansion in anterior vesicle. 3: Detail of the cephalic vesicle showing the anterior half with the lateral projections forming an umbrella and the posterior half with “handles of a pitcher” appearance. 4: Ovejector of female showing flap in anterior lip of vulva, vagina vera, infundibulum, sphincters, and uterine branches containing mature eggs. 5: Face view of male, showing arrangement of papillae and cuticular expansions of the anterior cephalic vesicle. 6: Posterior end of male, showing the relative position of spicules and gubernaculum. 7: Spicule. 8: Gubernaculum. 9: Egg. 10: Caudal bursa showing bursal arrangement and bifurcation of dorsal ray. 11: Lateral view of tail of female. 12: Ventral view of tail of female.
Figures 13–20.
Figures 13–20.
Scanning electron micrographs of Torrestrongylus tetradorsalis n. sp. 13: Subventral view of the anterior end, showing lateral projections of cephalic vesicle; posterior part of cephalic vesicle appears “deflated”. 14: Face view showing stoma, papillae, and amphids. 15: Detail of the vulva featuring conspicuous flap, lateral view. 16: Ventral view of vulva showing the basis of the vulvar flap. 17: Deirid. 18: Lateral view of caudal bursa, showing projections supported by bursal rays. 19: Ventral view of tail of female, featuring anus and terminal spines. 20: Subterminal view of tail of female, showing all three cuticular projections and terminal filament.
Figures 21–26.
Figures 21–26.
Cross section of Torrestrongylus tetradorsalis n. sp. Male at level of 21, nerve ring, 22 midbody and 23, posterior end of intestine. Female at level of 24, nerve ring, 25 midbody and 26, posterior end of intestine.
Figure 27.
Figure 27.
Relative position of Torrestrongylus tetradorsalis and Macuahuitloides inexpectans as reconstructed in the ML tree used to estimate the posterior probabilities of the branches. The numbers to the right of each node indicate bootstrap support for parsimony and maximum likelihood as optimality criteria and the posterior probability of the branch. Syngamus trachea belongs to Strongyloidea. The tree and data matrix can be retrieved from http://opensiuc.lib.siu.edu/zool_data/4/
See this image and copyright information in PMC

References

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