On a New Avian Nematode, Habronema (Aviabronema) hrishii sp. nov. from the Intestine ofMilvus migrans (Kite)Author(s): Vinod AgrawalSource: Transactions of the American Microscopical Society, Vol. 84, No. 4 (Oct., 1965), pp.573-576Published by: Wiley on behalf of American Microscopical SocietyStable URL: http://www.jstor.org/stable/3224803 .

Accessed: 06/10/2013 01:11

Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at .http://www.jstor.org/page/info/about/policies/terms.jsp

.JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range ofcontent in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new formsof scholarship. For more information about JSTOR, please contact support@jstor.org.

.

Wiley and American Microscopical Society are collaborating with JSTOR to digitize, preserve and extendaccess to Transactions of the American Microscopical Society.

http://www.jstor.org

This content downloaded from 192.236.36.29 on Sun, 6 Oct 2013 01:11:00 AMAll use subject to JSTOR Terms and Conditions

ON A NEW AVIAN NEMATODE, HABRONEMA (AVIABRONEMA) HRISHII SP. NOV. FROM THE INTESTINE OF MILVUS MIGRANS

(KITE).'

VINOD AGRAWAL

Department of Zoology, University of Lucknow, Lucknow, U.P. India

Four specimens of this species of Habronema, two males and two females, were recovered from the intestine of Milvus migrans (Kite) at Lucknow and found to be new.

Family-Spiruridae Oerley, 1855 Habronema (Aviabronema) hrishii Sp. Nov.

(Figs. 1-7)

DESCRIPTION: Worms slender, in both sexes of uniform diameter attenuated only near the anterior and posterior end and more so towards latter. There is a slight difference in the size of two sexes, the male being thinner. Mouth elongated dorsoventrally. In end view, on the sides of the mouth opening there are two broad lateral lips. Each lip bears three fine teeth and three minute papillae. A pair of amphids is situated laterally. A cuticular collar-like projection is found at the base of the lips. Two lateral alae much pronounced on left side than the right side extending from anterior end to a little anterior to esophagus or throughout the body length. Cuticle more striated in male than in female. Striations 0.02 to 0.028 mm. apart in male and 0.01 to 0.025 mm. apart in female.

MALE: Body 10.39 to 10.6 mm. long and 0.31 to 0.33 mm. wide. Head 0.06 to 0.07 mm. in diameter. Two small cervical papillae, bristle-like, just ahead of nerve ring. Left one is situated at 0.15 to 0.20 mm. from anterior end and the right one is 0.20 to 0.26 mm. from anterior end. Mouth opens into a short cylindrical vestibule with thick walls, 0.05 x 0.04 mm. in size. Club-shaped esophagus composed of short anterior narrow muscular portion, 0.31 to 0.35 x 0.04 to 0.06 mm.; and longer posterior glandular portion, 3.11 to 3.20 x 0.13 to 0.14 mm. The entire esophagus is 3.42 to 3.55 mm. long. Nerve ring 0.19 to 0.22 mm. and excretory pore 0.30 to 0.35 mm. from anterior end. Tail bluntly rounded at the tip, 0.14 to 0.24 mm. long. The caudal end of the male curled ventrally and forming a single turn of a spiral provided with longitudinal striations at the ventral surface of the body. Caudal alae well-developed extending to the tip of tail, 0.14 to 0.24 mm. long. Seven pairs of caudal papillae, four pairs preanal, one pair adanal, and two pairs are postanal. Preanal papillae pedunculated,

1 Part of thesis accepted for the degree of Doctor of Philosophy at the University of Lucknow.

HABRONEMA HRISHII, SP. NOV. 573

MEGLITSCH, P. A. 1937. On some new and known Myxosporidia of the fishes of Illinois. Jour. Parasitol., 23: 467-477.

OTTO, G. R. and JAHN, T. L. 1943. Internal myxosporidian infections of some fishes of the Okoboji region. Proc. Iowa Acad. Sci., 50: 323-335.

SCHJUURMhANS-STKHOVEN, J. H. 1920. Ober einige Myxosporidian des Stichlings. Arch. f. Protistenk., 41: 321-329'.

YASUTAKE, W. T. and Woon, E. M. 1957. Some Myxosporidia found in Northwest salmonids. Jour. Parasitol., 43: 633-641.

This content downloaded from 192.236.36.29 on Sun, 6 Oct 2013 01:11:00 AMAll use subject to JSTOR Terms and Conditions

574 VINOD AGRAWAL

''

i I

?.~ . .:,"'' .? •.

?? ..?_

?.

?. .r

,

~.. ..

FIG. 1. Habronema (Aviabronema) hrishii, Sp. Nov. Anterior region of male. FIG. 2. Do. Tail of male, lateral view.

situated close together at regular intervals. One pair pedunculated, adanal papil- lae close to anus. Two pairs postanal papillae close to posterior extremity, of which the anterior one is sessile while posterior is pedunculated. In addition to this there are four pairs of small sessile papillae near the tip of the tail. A pair of phasmids is also observed near the tip of the tail. Spicules tubular, somewhat funnel shaped, dissimilar, broader at the anterior end, and sharply pointed at the posterior end. The right spicule is 1.43 to 1.82 mm. long while left is 0.46 to 0.50 mm. long. Gubernaculum triangular in shape, 0.05 to 0.06 mm. long.

FEMALE: Body 13.23 to 14.66 mm. long, 0.38 to 0.39 mm. wide. Head 0.06 mm. in diameter. Two small cervical papillae, are situated at 0.34 to 0.43 mm. from anterior end. Cylindrical vestibule, 0.05 x 0.04 mm. in size. Anterior mus- cular esophagus 0.30 to 0.38 x 0.04 mm. Posterior glandular esophagus 3.64 to 4.28 x 0.1 to 0.12 mm. The entire esophagus is 3.94 to 4.66 mm. long. Nerve

This content downloaded from 192.236.36.29 on Sun, 6 Oct 2013 01:11:00 AMAll use subject to JSTOR Terms and Conditions

HABRONEMA HRISHII, SP. NOV. 575

z~u (ii

II D Q

II~ f 5 7

o 4 o . rrnmI 3

... ?..

II '? I I: r, I L ;?/ ri

t:./ o O ?' :; O )?

\ ~~ o ?; ; o :)

\ ~~,b i_ r o Qr :1 9 ~ :?: * n?

~?1?.. 6

FIG. 3. Do. End view. FIG. 4. Do. Anterior region of male, lateral view. FIG. 5. Do. Tail of male, ventral view. FIG. 6. Do. Tip of male tail, ventral view. FIG. 7. Do. Tail of female, lateral view.

ring 0.21 to 0.25 mm. and excretory pore 0.27 to 0.34 mm. from anterior end. Tail short, bluntly rounded at the tip having a pair of cuticular processes at its pos- terior end, 0.24 to 0.25 mm. long. Vulva pre-equatorial, slightly anterior to mid- region of body at 6.58 to 6.94 mm. from anterior extremity.

HOST: Milvus migrans (Kite). HABITAT: Intestine. LOCALITY: Lucknow. PARATYPE AND HOLOTYPE SPECIMENS: Dr. G. S. Thapar's Helminthological

Collection, Lucknow, U. P. India. DIscussioN: Ali (1961) divided the genus Habronema into two subgenera viz.

Habronema and Aviabronema. In the subgenus Habronema the vulva lies either

This content downloaded from 192.236.36.29 on Sun, 6 Oct 2013 01:11:00 AMAll use subject to JSTOR Terms and Conditions

576 VINOD AGRAWAL

on the ventral axis or displaced dorsally and possesses only one lateral alae while in Aviabronema the vulva lies on ventral axis of body without or with lateral alae. The present form belongs to the genus Habronema (Aviabronema) Diesing, 1861. Thirty-four species of the genus Habronema (Aviabronema) from birds have been described. H. ("A") hrishii Sp. Nov. belongs to a group of species within the genus which possess two lateral alae, males 10 mm. or longer and vulva pre-equatorial. This group includes the following species viz. H. ("A") dolichocolpos Chabaud and Brygoo, 1958; H. ("A") incertum Smith, 1908; H. ("A") colaptes Walton, 1923; H. ("A") hyderabadensis Ali, 1961; H. ("A") mansoni Seurat, 1914; H. ("A") americanum Chandler, 1941; H. ("A") magni- papillatum All, 1961; and H. ("A") waheedae All, 1961. The new form differs from H. ("A") dolichocolpos in the size of male and female specimens and in having left spicule shorter. Further it differs from H. ("A") incertum in the posi- tion of vulva. The new form can also be distinguished from H. ("A") amer- icanum; H. ("A") magnipapillatum and H. ("A") waheedae in having left spicule more than 1 mm. long.

H. ("A") hrishii Sp. Nov. resembles closely H. ("A") colaptes and H. ("A") hyderabadensis in having a rather long left spicule of more than 1 mm. The new form differs from H. ("A") colaptes in the absence of sessile papilla on the left side of anterior edge of cloacal aperture and in the possession of four pairs of small sessile papillae instead of five at the caudal extremity. The new form also differs from H. ("A") hyderabadensis in the absence of a pair of precloacal sessile papillae and in the absence of a pair of adanal papillae. Further H. ("A") hrishii Sp. Nov. differs from the above two forms in having sessile anterior postcloacal papillae.

Three species of the genus Habronema viz. H. ("A") leptoptera (Rudolphi, 1819) Seurat, 1914; H. ("A") mansoni Seurat, 1914 and H. ("A") singhi All, 1961 have been described so far from a kite. H. ("A") hrishii Sp. Nov. differs from H. ("A") leptoptera in having spicules 1.43 to 1.82 mm. and 0.46 to 0.50 mm. in- stead of 0.64 and 0.02 mm. long and in the absence of one pair of adanal papillae. The new form differs from H. ("A") mansoni in the absence of a precloacal ses- sile papilla, in not having asymmetrical postcloacal papillae and in having spicules longer instead of smaller. H. ("A") hrishii Sp. Nov. further differs from H. ("A") singhi in having two lateral alae instead of one, in having vulva anterior to mid- region of body instead postequatorial, in having spicules longer instead of shorter, in the possession of one pair of pedunculated adanal papillae and four pairs of sessile papillae instead of six pairs at the tip. It is accordingly considered new with the specific name Habronema (Aviabronema) hrishii Sp. Nov., named in honor of Dr. Hrishi Bhu Tewari, Department of Zoology, University of Luck- now, Lucknow, U.P. India.

ACKNOWLEDGMENT

The work has been carried out under the direction of Dr. S. P. Gupta, De- partment of Zoology, University of Lucknow, Lucknow. The author is deeply indebted to him for his invaluable help and encouragement.

LTERATURE CITED

ALI, S. M. 1961. On some new nematodes (Habronematinae) from birds in Hyderabad, India, and the relationships of the genus Habronema. Jour. Helm., 35( /2): 1-48.

This content downloaded from 192.236.36.29 on Sun, 6 Oct 2013 01:11:00 AMAll use subject to JSTOR Terms and Conditions