Haementeria lopezi, Oceguera-Figueroa, Alejandro, 2006

Oceguera-Figueroa, Alejandro, 2006, (Annelida: Glossiphoniidae) from Jalisco State, Mexico, Zootaxa 1110, pp. 39-45 : 40-41

Haementeria lopezi n. sp. ( Figs. 1–3 )

Material examined

Holotype. ( CNHE 5343) Fixed in 4% formalin and preserved in 70% ethanol. Length 52 mm, width 7 mm. MEXICO, Las Palmas, Jalisco, 20.82855N, 105.00937 W; coll. A. Oceguera­Figueroa, R. Mata, F. Bertoni, R. Paredes and M. Arizmendi, 21 June 2003. Paratypes. ( CNHE: 5344, 5345, 5346, 5356) 10 specimens, locality, collectors and date as for holotype.

Etymology: Named for Serapio López Jiménez, for his detailed observations and critical taxonomic discussion in relation with Mexican leeches.

Type host: Bufo marinus Linnaeus.

Other host: Smilisca baudinii (Duméril and Bibron) .

Site of infection: body surface.

Description

External Morphology

Brownish; largest specimen 59 mm long, 9 mm wide; smallest specimen 22 mm long and 6 mm wide. Papillae white, almost flat spots, 10–12 papillae on each annulus forming longitudinal rows not well defined. A well defined obscure longitudinal mid­dorsal line occurs immediately after the eyespot to the end of the body. One pair of paramedial longitudinal lines starting in somite IX, formed by the accumulation of pigments in a2, lines are irregularly interrupted ( Figure 1 ). One pair of eyes fused forming a single pigmented eyespot on somite III. Ventral surface lighter than dorsum, with small papillae on every annulus ( Figure 2 ). Male gonopore between XI and XII. Female gonopore on XII a2/(b5+b6). Two annuli between gonopores. Complete somite triannulate. a1, a2 and a3 dorsally undivided, a1 and a3 ventrally subdivided. Somite I and II uniannulate. Somite III biannulate. Somites IV–XXIV triannulate. Somites XXV–XXVII biannulate.

Oral sucker somewhat triangular with mouth­pore subterminal. Anus located on the dorsal surface, at XXVII between a1/a2. Caudal sucker directed ventrally in relaxed specimens, wider than the posterior part of the body, with small papillae and radial white lines dorsally.

Internal Morphology

Proboscis in membranous sheath extending posteriorly to somite XIV, forming a loop, returning anteriorly to somite XI/XII, connecting with oesophagus. Two pairs of compact salivary glands opening into the base of the proboscis, the biggest pair with proximal ends anteriorly directed; the other pair with proximal ends posteriorly directed. Two pairs of spheroidal mycetomes located latero­ventrally in somite XI. Each mycetome opening independently via thin ductules into the oesophagus ( Figure 3 ).

Crop with seven pairs of caeca. Caeca I–VI bi­ or tri­lobulated, from somites XIII to XVIII. Posterior caeca with diverticula or postcaeca extending lateraly from XIX to XXV. Diverticula divided in three lobulated chambers. Intestine with four caeca in somites XX to XXIII. Short rectum from somite XXIV to anus.

Six pairs of testisacs found intersegmentally from somites XIII/XIV to XVIII/XIX. Ejaculatory ducts simple without posterior extension, widening toward the anterior part of the body, followed by a coiled ejaculatory duct, opening into the respective atrial cornua. Ovisacs simple, not folded, reaching somite XV/XVI.

Figures

FIGURE 1. Haementeria lopezi n. sp. from Las Palmas, Jalisco, Mexico. Dorsal view of the holotype.

FIGURE 2. Haementeria lopezi n. sp. from Las Palmas, Jalisco, Mexico. Ventral view of the holotype.

FIGURE 3. Haementeria lopezi n. sp. from Las Palmas, Jalisco, Mexico. Base of the proboscis of a paratype.