Art. XV. — On an Australian Land Nemertlne 



(Geonemertes austral iensis, u. spj 



(With Plates VII, VIII, IX, X.) 



By Arthur Dendy, D. Sc, F.L.S. 



[Read July 9, 1891.] 



CONTENTS. j._^,^^_ 



1. Introductoky Eemarks .. .. .. .. ..85 



2. Habitat and Distribution . . . . . . . . . . 86 



3. External Characters, Habits and Methods of Preparation . . 87 

 i. Minute Anatomy — 



a. Epidermis and Sub-epidermic Tissues . . . . . . 90 



b. Muscular System . . . . . . . . . . 91 



c. Alimentary Canal . . . . . . . . . . 92 



d. Proboscis Sheath and Proboscis . . . . . . 94 



c. Circulatory and Excretory System . . . . . . 100 



/. Nervous System . . . . . . . . . . 106 



g. Lateral Organs . . . . . . . . . . 108 



h. Eyes .. .. .. .. .. ..110 



i. Connective Tissue, Glandular Structures, &c. . . . . Ill 



k. Reproductive Organs .. ., .. .. .. 114 



5. Summary .. .. .. .. .. .. .. 116 



6. Description of Plates .. .. .. .. .. 117 



1. Introductory Remarks. 



In the Victorian Naturalist for December, 1889, I 

 recorded the discovery of three specimens of a terrestrial 

 Nemertine at Walhalla, Gippsland, Victoria, and gave a 

 brief description of the general appearance of the animal.* 

 Being unable, at the time, to obtain access to Professor von 

 Graff's paper on Geonemertes chalicophora,-\ which it was 



* " Zoological Notes on a Trip to Walhalla," loc. cit. p. 132. 

 t " Geonemertes chalicopJicra , eine neue Landnemertine," Morphologisches 

 Jabrbuch, Bd. V, 1879, p. 430. 



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