"W. C. M'INTOSH ON BRITISH ANNELIDA. 373 



EUPHROSYNIDiE. 



EuPHROSYNE FOLiosA, Aud. & Ed. In Dr. Johnston's Catalogue of the Annelida in 

 the British Museum, two species of Euphrosyne are described, viz. the above-mentioned 

 E.foliosa and E. horealis, (Erst. So far as can be observed, however, there seems to 

 be considerable confusion in regard to the common species. It is possible that the 

 E. myrtosa, Sav. (Ehlers), E. foliosa, and E niediterranea of Grube, may refer to the 

 same animal. The common species {E. foliosa), at all events, ranges from Shetland to 

 the Channel Islands, and especially on the west coasts of Great Britain and Ireland. 

 Little reliance can be placed on the length of the bristles and branchise, the former 

 being generally much larger in young specimens. I have also some hesitation in con- 

 sidering the E. racemosa of Ehlers' other than a variety of the common species. 



.^^■It,^^ ^UPHEQSiiai BOKEALis, Qirst.^ A specimen of this species occurs in the collection of 

 the British Museum under the name E. foliosa, Aud. & Ed., from the Frith of Clyde. 

 The branchiae have much larger and less acute tips than in E. lanceolata from the 

 ' Porcupine;' and the bristles are also characteristic. 



The only occasion on which Spinther oniscoides, Johnst., occurred was in the Minch, 

 off North Uist. It had the usual yellow hue ; and the body was flanked by a series of 

 lamellae with long bristles and opaque white spots. The bristles of the lateral pro- 

 cesses were united together by a delicate granular stroma, so that under the microscope 

 each had a granular appearance. They are arranged with considerable regularity ; and 

 all are peculiarly curved (PI. LXVII. fig. 1, and a somewhat shorter and stouter form, 

 more highly magnified, in fig. 2). There are some obscure markings in the fork of the 

 bristle. In the centre of the dorsal branch of the foot are also some simple bristles. 

 The ventral cirrus has one conspicuous hook (fig. 3) projecting from the soft papilla, 

 generally another of similar form (but shorter) within the foot, and the distal curved 

 parts of other two embedded in the tissues. Numerous simple bristles with tapering 

 tips support the chief hook. The forked bristles on the dorsal surface are similar to 

 the stouter series in the dorsal branch of the foot, but, on the whole, have stronger 

 shafts and more tapering tips. 



AMPHINOMID^. 



Of this family the only British representative yet encountered is the Eurythoe 

 borealis of Sars, which extends from Shetland to the Channel Islands, occupying deep 

 water in the former, and the littoral region in the latter. A description is given in the 

 ' Transactions ' of the Eoyal Society of Edinburgh (vol. xxv. p. 406) under the head of 

 Amphinonu vagans 1, Leach. 



' Die Borstenwiirmer, i. p. 67, taf. i. ' Gronlands Aimulat. dorsib. p. 170, f. 23-27. 



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