Uvitellina titiri Chatterji, 1958

Dronen, Norman O. & Blend, Charles K., 2015, Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007, Zootaxa 4053 (1), pp. 1-100 : 45-46

U. titiri ( Chatterji, 1958) n. comb.

Type host. Spur-winged lapwing or plover, Vanellus spinosus (Linnaeus) (Syn. Haplopterus ventralis [Linnaeus]) ( Charadriiformes : Charadriidae ).

Type locality. Junshi near Allahabad, Allahabad District, India.

Remarks. This species was originally described as Cyclocoelum titiri Chatteriji, 1958 , but was transferred to Wardianum by Yamaguti (1971). It was considered to be a synonym of Haematotrephus lanceolatum ( Wedl, 1858) by Gupta (1964). This species has a pretesticular ovary that forms a triangle with the diagonal testes (Haematotrephinae). The genital pore was described by Chatterji (1958) as opening “behind pharynx” (postpharyngeal), but it was shown to be immediately below the intestinal bifurcation in the figure of the adult (apparently Fig. 2 ). Chatterji (1958) described the vitelline fields as extending “posteriorly to hinder-most ends of the intestinal arch” (confluent). The author also commented that “vitellarium in anterior third of body clearly visible” while some parts were apparently “obscured by uterus”. The vitelline fields appear to be shown as being confluent in Fig. 2 , placing this species in Uvitellina . Note that the genital pore placement is unusual for cyclocoelids because it opens below the intestinal bifurcation; however, Chatterji (1958) indicated that the intestinal bifurcation was “much disposed anteriorly”, which may have caused the placement of the genital pore to appear to be more posterior than normal. Rudimentary oral sucker present—Chatterji (1958).

Figures

FIGURES 1 – 4. Diagrammatic representations of species representing the genera assigned to Cyclocoelinae Stossich, 1902. 1. Cyclocoelum Brandes, 1892 represented by Cyclocoelum mutabile (Zeder, 1800), adapted from Kossack (1911); 2. Selfcoelum Dronen, Gardner, & Jiménez, 2006 represented by Selfcoelum limnodromi Dronen, Gardner, & Jiménez, 2006, adapted from Dronen et al. (2006 a); 3. Psophiatrema Dronen & Kinsella, 2009 represented by Psophiatrema greineri Dronen & Kinsella, 2009, adapted from Dronen & Kinsella (2009); 4. Circumvitellatrema Dronen, Greiner, Ialeggio & Nolan, 2009 represented by Circumvitellatrema momota Dronen, Greiner, Ialeggio & Nolan, 2009, adapted from Dronen et al. (2009). Abbreviations: C, cecum; G, genital pore; O, ovary; P, pharynx; S, rudimentary oral sucker; T, testis; U, uterus; V, vitelline field.