Comparative Parasitology 67(1) 2000 - Peru State College

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COMPARATIVE PARASITOLOGY, <strong>67</strong>(1), JANUARY <strong>2000</strong> Cenote (15 April 1998), 1/1, 20; Cichlasoma octofasciatum (Regan, 1903), Cedros River (19 May 1998), 4/4, 4 (1-7); Cichlasoma trimaculatum (Giinther, 1869), Champerico River (16 December 1995), 3/3, 34 (14-37); C. urophthalmus, El Yucateco Lagoon (30 January 1998), 7/ 8, 65 (2-284); Cenote Azul (2 March 1998), I/ 3; 4, Mahahual (2 March 1998), 3/3, 16 (4-16); Dzonot Cervera Cenote (15 April 1998), 1/3, 1; Rancho Don Milo (8 May 1998), 1/3, 12; La Pera Lagoon (15 June 1998), 1/8, 50; Petentuche Cenote (10 October 1997), 1/1, 52; P. splendida, Dzaptun Cenote (21 August 1996), 1/1, 18; Silvituc Lagoon (15 July 1997), 1/1, 7; Valle Hermoso Lagoon (2 March 1998), 1/1, 15; Palizada River (15 June 1998), 1/2, 12; Santa Anita Lagoon (24 April 1998), 1/1. SPECIMENS DEPOSITED: Voucher specimens from C. aureum and C. friedrichstahli in USNPC (Nos. 88943 and 88945); from C. tri maculatum in CNHE (No. 3136), USNPC (No. 88944), BMNH (No. 1999.7.13.25), and CHCM (Nos. 224 and 225); from P. splendida in CNHE (Nos. 3135 and 3136), IPCAS (No. M-343), USNPC (No. 87303), and CHCM (No. 220). REMARKS: The morphology and measurements of the specimens found in the different hosts correspond well to the description of S. mexicanum from C. urophthalmus by Kritsky et al. (1994). Cichlasoma aureum, C. trimaculatum, and P. splendida represent new host records. The finding of S. mexicanum in Guatemala is the first record of this parasite in Central America. The present data, together with those of Mendoza-Franco et al. (1999), who reported S. mexicanum from C. friedrichstahli, C. octofasciatum, and C. synspilum, demonstrate a wide host specificity of 5. mexicanum. Sciadicleithrum splendidae Kritsky, Vidal-Martmez, and Rodriguez-Canul, 1994 (Figs. 1-11) MEASUREMENTS: Measurements of 41 specimens studied from different hosts and localities are given in Table 2. HOSTS, LOCALITIES, SAMPLING DATES, AND PA- RAMETERS OF INFECTION: C. friedrichstahli, Dzaptun Cenote (1 August 1997), 1/1, 9; Mahahual (2 March 1998), 2/2, 9 (7-11); Cedros River (19 May 1998), 8/15, 10 (1-18); C. managuense, Santa Gertrudis (17 March 1998), 1/1, 4. SPECIMENS DEPOSITED: Voucher specimens from C. friedrichstahli in CNHE (Nos. 3720 and Copyright © 2011, The Helminthological Society of Washington 3721), CHCM (No. 218), USNPC (Nos. 88948 and 88949), and BMNH (No. 1999.7.13.26). REMARKS: Both species of Cichlasoma studied are new hosts of S. splendidae. Specimens obtained from C. friedrichstahli closely resemble in their morphology those of S. splendidae from P. splendida previously described by Kritsky et al. (1994). All possess hamuli relatively similar in size and shape, the base of the copulatory organ with bilobed proximal branch, and a vagina comprising a sclerotized tube looping anteriorly on the dextromedial half of the trunk. However, there are slight differences between the present material and that of S. splendidae in the number of coils of the male copulatory organ (1.5 rings in the specimens studied versus more than 2 in S. splendidae) and the size of the accessory piece, 38 (30—45) in worms from C. friedrichstahli and 22 in specimens from the type host. Similarly to S. bravohollisae, the differences in the measurements of sclerotized and soft body parts of specimens from C. friedrichstahli might be related to the size of the worms and the method of fixation (see Fig. 6). A similar phenomenon has previously been observed among individual specimens of Sciadicleithrum umbilicum Kritsky, Thatcher, and Boeger, 1989, from South America (Kritsky et al., 1989). The original description of S. splendidae was based on only 2 specimens (Kritsky et al., 1994). The additional material from this study evidences that the shape and number of coils of the male copulatory organ vary among specimens from the same hosts (Figs. 2-4) and that this species possesses a seminal vesicle (see Fig. 1) that lacks a thickened wall, as is present in congeneric species of Sciadicleithrum from Yucatan (Kritsky et al., 1994; Mendoza-Franco et al., 1997). As for S. bravohollisae, S. splendidae occurs in members of 2 genera of cichlid fishes, Cichlasoma and Petenia. Discussion Species of Sciadicleithrum were first reported from cichlids from South America (Kritsky et al., 1989) and subsequently from cichlid fishes from southeastern Mexico (Kritsky et al., 1994; Mendoza-Franco et al., 1997, 1999). The present study confirmed previous observations by the latter authors that the fauna of monogeneans assigned to Sciadicleithrum from the Yucatan Peninsula of Mexico and neighboring areas is depauperate in the number of species.
MENDOZA-FRANCO ET AL.—SCIADICLEITHRUM FROM MEXICO AND GUATEMALA 89 Figures 1-11. Sciadicleithrum splendidae. 1. Total view (ventral). 2—4. Copulatory complexes (2, 3. ventral view; 4. dorsal view). 5. Vagina. 6. Whole mount (fixed with Berland's solution and a glycerinammonium picrate mixture). 7. Ventral bar. 8. Dorsal bar. 9. Ventral hamulus. 10. Hook. 11. Dorsal hamulus. Scale bars = 50 |xm (Fig. 1), 30 fxm (Figs. 2, 7-11), 40 urn (Figs. 3-5), and 200 (xm (Fig. 6). sv = seminal vesicle; f = filament. Copyright © 2011, The Helminthological Society of Washington
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January 2000 Number 1 Comparative P
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Comp. Parasitol. 67(1). 2000 pp. 1-
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children. This means, to most of th
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liese, 1995; Marcogliese and Cone,
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ural and human alterations of ecosy
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ternationally and locally; (2) be i
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justify the inclusion of parasites
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phy to understand faunal structure
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Eucestoda) coincided with the diver
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(Hoberg et al., 2000). These studie
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serve biodiversity effectively if e
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Clayton, D. H., and B. A. Walther.
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ham. 1996. Combining data in phylog
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schistosomes. Journal of Parasitolo
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MARCOGLIESE ET AL.—DIPLOSTOMUM SP
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MARCOGLIESE HT f^L.—DIPLOSTOMUM S
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MARCOGLIESE ET AL.—DIPLOSTOMUM SP
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(Latreille, 1804) Brandt and Ratzeb
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COADY AND N]CKOL—PLAGIORHYNCHUS C
Page 39 and 40: COADY AND NICKOL—PLAGIORHYNCHUS C
Page 41 and 42: Threlfall, W. 1965. Helminth parasi
Page 43 and 44: strictive traits that were basicall
Page 45 and 46: Cement gland usually small with few
Page 47 and 48: AMIN ET AL.—REVISION OF THE GENUS
Page 49 and 50: AMIN ET AL.—REVISION OF THE GENUS
Page 51 and 52: 17. Trunk spines appearing continuo
Page 53 and 54: Comp. Parasitol. 67(1), 2000 pp. 51
Page 55 and 56: SMALES—POPOVASTRONGYLUS FROM MARS
Page 57 and 58: tion in a circular buccal capsule.
Page 59 and 60: strongylus pluteus differs from P.
Page 61 and 62: garoo from Kangaroo Island (Smales
Page 63 and 64: BURSEY AND GOLDBERG~-/l/VG7aSTOAM O
Page 65 and 66: Table 2. Parasite list for Onychoda
Page 67 and 68: phibian helminths in Japan. VI. Pse
Page 69 and 70: quadrant and 70° in male, 75° in
Page 71 and 72: increase in the number of cuticular
Page 75 and 76: Figures 1-3. Pseudoterranova decipi
Page 77 and 78: AMIN ET M^.—PSEUDOTERRANOVA IN MA
Page 79 and 80: the gill baskets of some hosts were
Page 81 and 82: KRITSKY ET AL.—DACTYLOGYRIDS FROM
Page 83 and 84: er, and Boeger, 1986, and Amphoclei
Page 85 and 86: 1974); P. laticeps Eigenmann, Lagun
Page 89: MENDOZA-FRANCO ET SCIADICLEITHRUM F
Page 93 and 94: MENDOZA-FRANCO ET M^.—SCIADICLEIT
Page 95 and 96: PEREZ-PONCE DE LEON ET AL.—DIGENE
Page 103 and 104: Table 2. Continued. Locality* (CNHE
Page 105 and 106: Table 2. Continued. Locality (CNHE
Page 107 and 108: casionally prey on tadpoles and ins
Page 113 and 114: Table 1. Extended. Ctenophorus reti
Page 115 and 116: Table 2. Extended. 3 '£ Oswaldofil
Page 117 and 118: Mediorhynchus orientalis Belopol'sk
Page 119 and 120: 4-5 spines each: 25.0-35.0 (31.4).
Page 121 and 122: Table 1. Previous helminth records
Page 123 and 124: hyrae from a collection of lizards.
Page 125 and 126: WEST ET AL.—RESEARCH NOTES 123 Ta
Page 127 and 128: 1987, and from these only a sample
Page 129 and 130: snakes are part of their diet. The
Page 133 and 134: Table 2. Published records of helmi
Page 135 and 136: , , B. K. Sullivan, and Q. A. Truon
Page 137 and 138: were larvae. Still, we have conclud
Page 139 and 140: and their habitats. These low paras
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e eligible for election to office.
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New business. Presentation of notes
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Name: MEMBERSHIP APPLICATION 143 AP
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*Edna M. Buhrer *Mildred A. Doss *A
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