Szidatitrema yamagutii n. sp. (Digenea: Cyclocoelidae: Ophthalmophaginae) from the bearded barbet, Lybius dubius (Capitionidae), and the white-necked myna, Streptocitta albicollis (Sturnidae), that died at the Audubon Zoo in New Orleans, Louisiana, U.S.A.

Zootaxa ◽  
2006 ◽  
Vol 1219 (1) ◽  
pp. 59 ◽  
Author(s):  
NORMAN O. DRONEN ◽  
THOMAS M. CRAIG ◽  
ELIZABETH E. HAMMOND

Szidatitrema yamagutii n. sp. was found in the air sacs and body cavities of 2 bearded barbets, Lybius dubius, and a white-necked myna, Streptocitta albicollis, that died at the Audubon Zoo, New Orleans, Louisiana between June, 2000 and April, 2005. The new species can be distinguished from Szidatitrema philomachii and Szidatitrema vogeli, the only species currently assigned to this genus, by having a smaller egg size (80–105 by 40–55 compared to 117–126 by 54–72 and 110 by 50, respectively) and the testes of S. yamagutii n. sp. are less obliquely positioned relative to each other. Szidatitrema yamagutii n. sp. further differs from S. philomachii by lacking an oral sucker and having larger testes (anterior testis 405 by 375 compared to 270 by 210; posterior testis 435 by 370 compared to 225 by 210) and from S. vogeli by having a shorter cirrus sac (345 compared to 554) ), smaller testes (anterior testis 405 long compared to 700; posterior testis 435 long compared to 500), a smaller ovary (220–330 wide compared to 400), and a larger postovarian space (approximately 10% of body length compared to 6%). This new species was likely introduced into the Audubon Zoo through the importation of species of Old World birds.


1977 ◽  
Vol 51 (3) ◽  
pp. 205-208 ◽  
Author(s):  
James R. Palmieri ◽  
John T. Sullivan

ABSTRACTMesocoelium malayanum sp.n. is described from the frog Rana macrodon, in Malaysia. Elongate body, broader anteriorly, measuring 1·900 (1·679–2·070) mm long by 0·404 (0·380–0·437) wide, tegument aspinose oral sucker 0·212 (0·200–0·228) by 0·202 (0·191–0·205), acetabulum 0·141 (0·132–0·150) by 0·139 (0·123–0·146), prepharynx present, oesophagus 0·115 (0·096–0·137), caeca reaching posterior ⅓ of body, anterior testis 0·097 (0·087–0·110) by 0·091 (0·087–0·100) dorsal to acetabulum, posterior testis 0·094 (0·087–0·101) by 0·092 (0·091–0·100), cirrus pouch 0·121 (0·111–0·130) by 0·047 (0·041–0·055), genital pore at left of midline of oesophagus just anterior to intestinal bifurcation, ovary 0·110 (0·091–0·127) by 0·089 (0·085–0·096) on left of body and posterior to acetabulum, vitelline glands with single follicles extending from intestinal bifurcation to ends of caeca, excretory vesicle I-shaped and eggs 0·040 (0·037–0·046) by 0·023 (0·022–0·024). Although morphologically related to M. maroccanum and M. meggitti, M. malayanum is considered to be a new species.



2016 ◽  
Vol 91 (5) ◽  
pp. 625-632 ◽  
Author(s):  
V.V. Besprozvannykh ◽  
D.M. Atopkin ◽  
A.V. Ermolenko ◽  
A.Yu. Beloded

AbstractA new species of Skrjabinolecithum (Digenea: Waretrematinae), Skrjabinolecithum pyriforme n. sp., has been found in the intestines of Liza haematocheila and Mugil cephalus from the Primorsky Region, Russia. These worms differ from S. vitellosum and S. lobolecithum by the presence of two caeca, as do S. spasskii, S. indicum and S. bengalensis. These species differ morphologically from S. pyriforme n. sp. by a number of features, including body width, oral sucker, pharynx, eggs and ratio of length and width of the body. The most similar species to S. pyriforme n. sp. is Platydidymus flecterotestis (Zhukov, 1971) with some differences in maximal body length, testis and egg sizes. The results of molecular analysis confirmed that this new species belongs to Skrjabinolecithum on the basis of close relationships with S. spasskii-type species.



Zootaxa ◽  
2009 ◽  
Vol 2161 (1) ◽  
pp. 60-68 ◽  
Author(s):  
NORMAN O. DRONEN ◽  
ELLIS C. GREINER ◽  
DONNA M. IALEGGIO ◽  
THOMAS J. NOLAN

Circumvitellatrema momota n. gen., n. sp. was found in the air sacs of a captive-hatched blue-crowned motmot, Momotus momota (Momotidae), that was being maintained in quarantine at the Animal Health Center of the Philadelphia Zoo in Philadelphia, Pennsylvania, U.S.A. This bird apparently became infected at the Audubon Zoo, New Orleans, Louisiana, U.S.A. where it was maintained for several years prior to being sent to the Philadelphia Zoo. In the new genus, the ovary is intertesticular, forming a triangle with the testes and the genus is assigned to Cyclocoelinae. It can be distinguished from the other 3 genera currently assigned to this subfamily (Cyclocoelum, Psophiatrema, and Selfcoelum) by having the vitelline fields confluent at both the anterior and posterior ends of the body forming a continuous loop. This new species was likely introduced into the Audubon Zoo through the importation of species of exotic birds.



2017 ◽  
Vol 92 (6) ◽  
pp. 713-724 ◽  
Author(s):  
V.V. Besprozvannykh ◽  
D.M. Atopkin ◽  
H.D. Ngo ◽  
N.V. Ha ◽  
N.V. Tang ◽  
...  

AbstractAdults of Skrjabinolecithum spinosum n. sp. were discovered in Mugil cephalus from the Gulf of Peter the Great in southern Far-East Russia. Additionally, adults of Unisaccus tonkini n. sp. were found in the intestine of Moolgarda cunnesius and Moolgarda seheli from the coastal waters of Cat Ba Island, Tonkin Bay, northern Vietnam. Skrjabinolecithum spinosum n. sp. possesses a larger body, and ventral and oral sucker size in comparison with Skrjabinolecithum vitellosum, a smaller pharynx size and body length/width rate ratio in comparison to Skrjabinolecithum pyriforme, a smaller body length and prepharynx size in comparison to Skrjabinolecithum lobolecitum and a smaller pharynx length and egg size in comparison to Skrjabinolecithum indicum and S. lobolecitum. The new species also differs from S. indicum, S. lobolecitum and S. vitellosum by the form of the testis, and from the last two species by the presence of a two-branched intestine. The morphometric parameters of S. spinosum n. sp. are similar to those of Skrjabinolecithum spasskii. However, S. spinosum n. sp., unlike S. spasskii, has an armed hermaphroditic duct. Unisaccus tonkini n. sp. is similar to Unisaccus spinosus (Martin, 1973), Unisaccus brisbanensis (Martin, 1973) and Unisaccus overstreeti (Ahmad, 1987) in body size but differs in oral sucker, pharynx and hermaphroditic sac size from U. spinosus, and in ventral sucker and ovary size from U. brisbanensis and U. overstreeti. Bayesian phylogenetic analysis, based on combined data of internal transcribed spacer 2 (ITS2) and partial 28S rRNA gene sequences, confirmed the validity of S. spinosum n. sp. and U. tonkini n. sp. Analysis of interrelationships of the family Haploporidae, including molecular data on new species, showed that the Waretrematinae subfamily is more heterogeneous in comparison with Haploporinae and Forticulcitinae, and includes U. tonkini n. sp.



2007 ◽  
Vol 52 (4) ◽  
Author(s):  
Vasyl Tkach ◽  
Scott Snyder

AbstractChoanocotyle platti sp. nov. (Digenea, Choanocotylidae) is described from the northern long-necked turtle, Chelodina rugosa (Pleurodira, Chelidae) from the Daly and Mary Rivers, Northern Territory, Australia. This is the fifth known member of Choanocotyle. Choanocotyle platti sp. nov. differs from Choanocotyle nematoides Jue Sue et Platt, 1998 and Choanocotyle hobbsi Platt et Tkach, 2003 by smaller body length, larger oral sucker, relatively greater distance between tests, and prepharynx with an infolded posterior region. In addition the new species does not have the looped cirrus sac characteristic of Choanocotyle nematoides. Comparison of sequences of 18S, ITS (ITS1, 5.8S, ITS2) and partial 28S regions of nuclear rDNA among all 3 species strongly supports the status of Choanocotyle platti sp. nov. as a new species.



1989 ◽  
Vol 37 (1) ◽  
pp. 59 ◽  
Author(s):  
HL Ching

Four members of the family Renicolidae are described from Heron I., Australia. Adults of two new species are found in the kidneys of the black noddy, Anous minutus. Of these, Renicola foliata, sp. nov., differs from related species in the position of the ovary and testes, in the lobate gonads, in egg size, and in the presence of an oesophagus. R. caudescens, sp. nov., is distinguished by its body size, the lobation and position of the testes, the distribution of the vitellarian follicles and the size of the oral sucker. Also described are a renicolid metacercaria from the musculature of an atherinid fish, and a renicolid cercaria (cercaria F of Rohde, 1981) from the gastropod Planaxis sulcatus.



1978 ◽  
Vol 52 (2) ◽  
pp. 131-139 ◽  
Author(s):  
R. A. Bray

ABSTRACTEnenterum elsti sp. nov. and E. prudhoei sp. nov. are described from the intestine of Neoscorpis lithophilus off Mapelane, Natal, South Africa. These species differ from others of the genus Enenterum in the ratio of the oral sucker to body-length and in the length of the prepharynx. E. elsti differs from. E. prudhoei in size, in sucker-ratio and in the number and configuration of the oral lobes. A key to the species of Enenterum is presented and the status of the genus briefly discussed.



2018 ◽  
Vol 24 (2) ◽  
Author(s):  
SANJOTA N. DAS ◽  
H. A. SAEED ◽  
R. R. GHAZI ◽  
G.S. GACHAL

The helmintho fauna of ten specimens of Cattle egret ( Bubulcus ibis ) from Larkana Sindh, Pakistan was studied. From all the specimens studied, the 30% were positive for helminths. The genus Episthmium9, was recovered in small intestine of Cattle egret and proposed as new species Episthmium alykhani sp.n. The new species is characterized by having: Body of parasite is flattened 6-6.24 by 2-2.5, Head collar bears 18 spines, Pre-pharynx absent, Ventral sucker is rounded, Testes tandem,anterior testis is cup shaped 0.7-0.79 by 1.52-1.63, posterior testis is roughly spherical 1- 1.2 by 1.2-1.3, Ovary horizontal elongated 0.3-0.4 by 0.8-0.86, Vitellaria dense commence from below the bifurcation reaches upto the anterior region of posterior testis.Eggs 0.17-0.22 by 0.08-0.091.



Parasitology ◽  
1932 ◽  
Vol 24 (3) ◽  
pp. 318-320 ◽  
Author(s):  
B. S. Gogate

Description. Body more or less elongated, narrowing anteriorly and posteriorly. Length 1·34–1·441, maximum width 0·476, maximum thickness 0·433, both measured in the region of adhesive apparatus. Entire surface of the body, except adhesive apparatus and the region posterior to second testis, covered with fine spines. Ventral folds originate approximately at centre of body and meet a little behind the level of posterior third to form a shallow cavity occupied by the adhesive apparatus. Adhesive apparatus smooth, oval, 0·4–0–44 long, 0·26–0–3 wide, with narrow central depression, anteriorly reaching acetabulum and posteriorly anterior margin of posterior testis. In it are imbedded vitelline follicles, anterior testis, ovary and anterior portions of cirrus sac and uterus.



2021 ◽  
pp. 149-151
Author(s):  
Ravi Khade ◽  
Amol Thosar ◽  
Sachin Tayade

The present investigation deals with the systematic observation of a new species of Phyllodistomum khadensis Sp. Nov. from fresh water fish Wallago attu. The worm is close to all species of genus phyllodistomum in general the body is narrow while the posterior portion of the body is broad and triangular in shape. The oral sucker is terminal. The ventral sucker is rounded in structure and larger than oral sucker. The bladder is long and tubular.The anterior testis is smaller than posterior one. Vas deferans is long, tubular and forms vasa efferentia. Female reproductive organ includes single ovary having its duct. The vitelline glands are two in number compact lobes on either side of the ootype. The eggs are oval to round in shape.



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