Phoenicopterus costaricensis Brenes & Arroyo, 1962

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 : 35

P. costaricensis ( Brenes & Arroyo, 1962) n. comb.

Type host. Blue-crowned motmot, Momotus momota (Linnaeus) ( Coraciiformes : Momotidae ).

Type locality. Quepos, Puntarenas Province, Republic of Costa Rica.

Remarks. This species was originally described as Cyclocoelum (Hyptiasmus) costaricensis Brenes & Arroyo, 1962 . It has an intertesticular ovary that forms a triangle with the testes (Cyclocoelinae) and a postpharyngeal genital pore suggesting placement in Selfcoelum ; however, unlike species of Selfcoelum , the vitelline fields are confluent posteriorly (“vitelline glands are formed by numerous follicles which are attached posteriorly”) ( Fig. 4 of Brenes & Arroyo 1962) in this species, placing it in Psophiatrema. Psophiatrema costaricensis n. comb. differs from Psophiatrema greineri Dronen & Kinsella, 2009 only in that it lacks a rudimentary oral sucker. Given the localities where these two species were found ( Republic of Costa Rica, southern Central America vs Guyana, northern South America, respectively) and the problems related to distinguishing a rudimentary oral sucker in cyclocoelids (discussed later in this paper) it is possible that these two species are synonymous. No oral or ventral sucker described—Brenes & Arroyo (1962).

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.