Cryptostylochus hullensis Faubel and Gollash, 1996

Bulnes, V. N., Faubel, A. & Park, J. - K., 2005, Two new marine species from South Korea with remarks on the family Stylochidae (Acotylea, Polycladida, Plathelminthes), Journal of Natural History (J. Nat. Hist.) 39 (23), pp. 2089-2107 : 2102

Cryptostylochus hullensis Faubel and Gollash, 1996

( Figure 3D )

Material examined

Holotype: V 13213 , one sagittally sectioned specimen, locality: hull of the car carrier ‘‘ Faust’ ’, docked in harbour of Bremerhaven, Germany, deposited in ZMUH.

Morphological notes

In the following only morphological characters which deviate from the description of Faubel and Gollasch (1996) are added or re-described.

Reproductive system. Male complex directed backwards. Vasa deferentia terminate by joining the seminal vesicle. The copulatory organ consists of a voluminous seminal vesicle, a free tubular prostatic vesicle, and a penis papilla. Prostatic vesicle roundish to oval with tubes extending from the proximal half distad. Extra-vesicular glands are directly attached to the muscular wall, the ducts of which cross the vesicular muscle wall and pour secretion into the lumen of the prostatic vesicle. Number of extra-vesicular glands identical to number of inner tubes. The prostatic vesicle represents the monoglandular type ( Figure 3D ).

Figures

Figure 3. Diagrammatic reconstruction of prostatic vesicles of Stylochidae. Monoglandular types: (A–C) Cryptostylochus koreensis sp. nov.: (A) medio-sagittal section through the prostatic vesicle, (B) peripheral section through the prostatic vesicle, (C) diagrammatic reconstruction of the prostatic vesicle; (D) Cryptostylochus hullensis Faubel and Gollasch. Polyglandular types: (E) Stylochus neapolitanus (Delle Chiaje); (F) Distylochus pusillus Bock. Scale bars: 70 mm.