A collection of Turbellaria polycladida from the Straits of Malacca (Skeat expedition, 1899-1900) / by F.F. Laidlaw.

  • Laidlaw, Frank Fortescue, 1876-1963.
Date:
1903
Catalogue details

Licence: In copyright

Credit: A collection of Turbellaria polycladida from the Straits of Malacca (Skeat expedition, 1899-1900) / by F.F. Laidlaw. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    Acotylea (con.). Leptoplanid^:. 2.* Semonia penangensis, sp. n. 3A' Leptoplana malayana, sp. n. 4. ,, obtusum (Coll.). Cryptocelidid^:. 5. * Bergendalia anomala, LATOCESTIDiE. 6. * Lcctocestus argus. Cotylea. PSEUDOCERID^E. 7. Thysanozoon cdhncmi. 8. * ,, auropunctatum. 9. Pseudoceros haucockianus (Coll.). 10. „ buskii (Coll.). 11. ,, kelaartii (Coll.). 12. ,, bedfordii, sp. n. 13. * „ collingwoodii, sp. n. 14. * Pseudoceros ? rubellus, sp. n. Diposthid^e. 15. * Asthenoceros woodivorthi, sp. n. Prosthiostomid^:. 16. * Prosthiostomum pallidum, sp. n. 17. ,, aurantiacum (Coll.). Species marked with an asterisk were collected by Mr. Evans. In this communication I have not ventured to give an account of the anatomy of any of the species, contained in the collection, which can be regarded as being at all complete. Such an account would have expanded the paper beyond limits reasonable in a systematic description. I have attempted only to give such a diagnosis of each species as shall render its future identification a matter of tolerable certainty, and to call attention to any of the more striking features which presented themselves. Family Planocerid-E. Planocera sp. (Plate XXIII. fig. 1.) A fragment of tissue of which I made microscopic sections proves to belong to a species of this genus, but being only a fragment I will not attempt to describe or name it, though it is obviously new. The section passes through the penis and prostate, and the spines lining the lumen of the former are of such a remark- able character that I venture to figure one of them, in the hope that a perfect example may be obtained ere long. The length of -each spine is roughly *08 mm., its breadth at the base ’02 mm. Xotoplana, gen. nov. Notoplana evansii, sp. n. (Plate XXIII. fig. 2.) A number of specimens belonging to this species were taken by [2]