Dendy. — On a New Zealand Land Nemertine. 193 



and arranged as follows : There is a median broad light band ; 

 on each side of this comes a broad dark band of about the 

 same width ; then comes a light band of about half the width ; 

 and this is followed on the outside by a very narrow dark 

 band, situate at about the junction of the dorsal and ventral 

 surfaces. Thus it appears that there are four dark bands or 

 stripes — viz., a pair of inner broad ones and a pair of outer 

 narrow ones. 



The second and somewhat smaller specimen, collected by 

 Miss Eich, agreed exactly with the first in external characters, 

 but, being apparently fresher, the dark bands on the dorsal 

 surface still retained a rich chocolate-brown colour, the other 

 parts of the body being of a pale-yellow. 



In sections stained with borax-carmine and cut by the 

 paraffin method I could only detect four eyes, situated deeply 

 beneath the epidermis of the rounded anterior extremity. 

 These are arranged in two pairs, those of the one pair being 

 considerably larger than those of the other, and placed a little 

 more anteriorly and ventrally. The smaller ones were difficult 

 to make out satisfactorily, because the pigment appears to have 

 been dissolved by the action of the alcohol ; the large ones 

 were very distinct, with the usual pigmented cup. With regard 

 to its eyes, therefore, Geonemertes novce-zealandice conforms to 

 the more usual condition met with in land nemertines, and 

 differs markedly from the Australian species. 



Other anatomical characters, so far as I have been able to 

 make out from the limited material at my disposal, agree very 

 closely with those of G. austr aliens is. 



The mouth opens into the rhynchodseum (in other words, 

 there is only a single aperture for mouth and proboscis- 

 sheath). 



Lateral organs, including cephalic pits, are well developed, 

 and appear to closely resemble those of G. austr aliensis . 



The nervous system, muscular system, and alimentary 

 canal do not seem to depart from the usual type. 



The structure of the proboscis, with its marvellous arma- 

 ture, appears also to agree closely with that of previously- 

 described species. The calcareous stylets have the usual 

 form, and I detected four reserve-sacs in the usual position. 

 Probably, however, this number is not constant. 



The 'sexes are probably distinct, for in the specimen of 

 which I cut sections I found abundant ova, but no sperma- 

 tozoa. 



A very strongly developed " cephalic gland " occurs in the 

 same position and with the same histological structure as in 

 G. austr aliensis, to the account of which species I would refer 

 the reader for further particulars as to the habits and anatomy 

 of these remarkable worms. 

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