Table 1 in The polyclads (Platyhelminthes: Polycladida) from the Tropical Eastern Pacific: Commented checklist and description of a new species

Table 1. Comparison of the morphological characters of Callioplana marianae sp. nov. with other two species of the genus.
TaxaCallioplana marginataCallioplana evelinaeCallioplana marianae sp. nov.ReferencesStimpson 1857: 4, 11; Yeri & Kaburaki 1918: 31–34, pl. 1 fig. 1, text figs 35–37Marcus 1954: 476–479, 485, figs 71–76This studyType locality? Oshima Island, JapanSan Sebastian Island, BrazilCamarón Beach, Oaxaca, MexicoDistributionReferred by Stimpson as Ousima Island, Sunosaki and Osaka, JapanSan Sebastian Island, BrazilOnly known from Oaxaca, MexicoIntertidal, breakwater zone; between woods, coarse sand and rocks;HabitatUnder rocks; depth 1.25 msharing habitat with algae of the genus Padina, polychaetes as Polygordius and cephalochordatesIntertidal, breakwater zone; under rocksBody (Long × wide mm)Oval (50–30 × 15–7)Oval (10 × 4)Elliptical (15–20 × 10–12) (Figs 1A–D, 3A)Color ivory, with small brownish spots condensed into three fineDorsal coloration and colour patternBlack-brown with a reddish-orange margin (Stimpson 1857); velvety black, reddish-brown margin (Yeri & Kaburaki 1918)longitudinal grooves; transverse red stripes (juveniles) or black (adults) in front of tentacles; black spots on the anterior margin giving the appearance of marginal eyesBeige background coloration, with light brown and white pigmentation that produce a reticulated appearance (Fig. 1A–B)Nuchal tentaclesConical, orange in the apical region (Yeri & Kaburaki 1918)Pointed, brown colored in the apical regionRudimentary nipple-shaped (Figs 1F, 3B)Prostatic vesicle morphology and positionOval, located anterior and dorsal to the seminal vesicle (Yeri & Kaburaki 1918)Oval, located ventral to the seminal vesicleOval, anterior to the seminal vesicle (Figs 1I, 2D, 3C–D)Penis papillaElongated and slender cylindrical, covered by a sheath (Yeri & Kaburaki 1918)ElongateShort (Fig. 2F)StyletAbsentAbsentPresent (Figs 2B, G, 3C–D)Lang’s vesicleDouble or bifurcated, anterior to the male gonoporeDouble or bifurcated, anterior to the male gonoporeTripartite, posterior to the male gonopore (Figs 1I, 2A, 3C–D)