Philippinella moellendorffi Collinge, 1899
Collinge (1901) original descriptions on Philippinella mollendorffi - “Animal yellowish with short bluish lines at each side immediately behind the head. Visceral mass large. Mantle convex, eompletely covering the shell, bluish-green anteriorly, dark blue posteriorly, laterally marked by a well pronounced keel, commencing on the right side just in front of, and above, the respiratory orifice, it passes backwards and curves around the postero-dorsal portion of the mantle, the left half passing forwards to almost the extreme anterior and border of the thin mantle edge. Caudal mucous pore slit-like, body laterally compressed, keel prominent. Tail truncated. Generative orifice behind the right tentacle. Peripodial groove distinct. Foot-sole yellowish-brown. Shell a thin, flat. almost circular calcareous plate, with dark amber or horn-coloured periostracum, the membranaceous border overlapping the edge of the plate. No trace of an apieal whorl.”
“Generative Organs - There is a wIde sac-like vestibule into which all the organs open. The penis is a thick muscular organ with a narrow lumen, attached to its distal end is a short broad retractor muscle. The vas deferens is a long narrow tube, it enters the penis at the proximal end, just before the connection with the penis, the tube widens and forms a short, wide tube. There is a short receptacular duct with a somewhat ovoid receptaculum seminis which shows a slight constriction distally. The receptaculum seminis is a little less in length than the penis. The vagina gives place below to the wide-sac-like and irregular shaped free oviduct, on the outer side of which there is a large ovoid expansion. The common duct calls for no special mention, beyond that the prestatic portion Stands out as a very distinct tube. Only having a single specimen, it was desirable that the whole of the visceral mass should be left undisturbed, the albumen gland and the hernuiphrodite gland were therefore not dissected out. The dart-sac is a large and conspicuous body, nearly twice the length of the penis. Externallv it is covered by a loose sheath composed mainly of plain muscle fibres. It may be divided into two parts, the solid distal portion, to the end of which is a strong retractor muscle, and a proximal folded upon itself. The fold is not apparent to the naked eye or indeed with a low power lens, but on striping otf the muscular sheath it is readily distinguished. The darf is a small, simple, calcareous rod, broadening at its base and pointed at the apex, it measured about 4.5 mm in length.” (Collinge, 1901)
“Length (in alcohol) 24 mm. Major diameter 11.5 mm. Minor diameter 6.5 mm: actual size of calcareous plate. 7 x 4.5 mm.” (Collinge, 1901)
Type locality – “Mindoro, 5000 feet” leg. J. Whitehead (Collinge, 1901)