466 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Linens longissimus, Sowerby. 



This species was not met with at all commonly ; a few 

 specimens were found at low tide at Port Erin in 1894, 

 and it was dredged off Bay Aldrick in about 17 fathoms 

 in 1895. 



Micrura purpurea (Daly ell), J. Miiller. 



Two examples of this species were dredged in about 15 

 fathoms to the north of the Halfway Kock on shelly 

 bottom. They were 6 to 7 cm. long, and in colour rich 

 purple-brown with the characteristic patch of yellow on 

 the snout. No eyes could be made out in either, 



Micrura fasciolata, Ehrenberg. 



This species was dredged not infrequently in 15 to 20 

 fathoms on the shell ground near Port Erin, but can 

 hardly be considered abundant. Length 3 to 6 cm. In 

 addition to specimens of the typical brownish red colour 

 with conspicuous white bands, a few were met with 

 resembling a variety described by M'Intosh ; these were 

 greenish and greyish brown in colour and the white bands 

 were very obscure, or even entirely absent, so that, but 

 for the possession of a caudal appendage, they bore a very 

 close resemblance to similarly coloured varieties of Linens 

 obscurus. 



An individual of this species, when accidentally dropped 

 into a solution of picric acid, disgorged a Polychaete 

 worm about half its own length. 



Micrura Candida, Biirger. 



Gerehratidus lacteus, Hubrecht. 



An opaque white Nemertine about 4 cm. long dredged 

 in June, 1895, to the north of the Halfway Eock in about 

 15 fathoms, proved to belong to the above species. It was 

 readily distinguished from pale examples of Gerehratulus 

 fiiscus by its rounder more attenuated body and less 

 pointed head, and by the absence of eyes. The surface 



