Gatty Marine Laboratory^ St. Andrews. 385 



an allied form, the caudal process beinnj as long as the last 

 four segments and with numerous rings, but its tip has 

 several slender papillae. The Ammotrypane lanyii, of the 

 same author*, from the Philippines, has a somewhat shorter 

 ringed caudal cylinder. 



A third form, Ammoti-y pane {Ophelina) kiikenthali'\, sp. u., 

 was dredged in the * Porcupine ' Expedition of 1870, in 795 

 fathoms. It is distinguished by its pointed snout, with its 

 slender clavate papilla projecting beyond it, and its slender 

 elongated body, like that of Pohjgordius^ about 25 mm. in 

 length, tapered a little anteriorly and posteriorly, rounded 

 dorsally, and grooved ventrally. The ventral longitudinal 

 muscles run on each side from the region of the mouth to the 

 base of the caudal process, and have the usual lateral groove 

 above them, but, so fjir as observed, neither bristles nor 

 pigment-specks are present. Posteriorly the body somewhat 

 abruptly narrows to the short, cylindrical, caudal process, 

 which has a smooth edge posteriorly — in one example oblique 

 and in the other rounded ; but as both seem to have been more 

 or less dried, there is uncertainty on this point. The slender, 

 smooth, glistening body, and the absence of bristles as well 

 as of cirri and papilla; on the caudal process are features of 

 moment. 



4. On the foregoing Families dredged by Dr. Whiteaves in 

 the Gulf of St. Lawrence, Canada. 



The representatives of the foregoing are comparatively 

 few, and, indeed, are confined to one family, viz. the Ophe- 

 liidse. The fact that little or no shore-collecting was done 

 ])erliaps accounts for the absence of the Telethusie, and, to 

 some extent, of the Scalibregmidte, though the representatives 

 of the latter also occur in deep water. Of the Opheliidre, 

 Ammotrypane aulogaster, H. Rathke, is not uncommon and 

 of good size, and Ammotrypane cylindricaudatus, Hansen, 

 was also procured. 



A fine example of Ophelia radiafa,T)e\\ix Chiaje (PI. XVII. 

 fig. 1), was dredged at Station Gl, viz. north-north-east of 

 Sliediac Island, -ith iSeptember, 1873, probably in water not 



* Itud. p. 305, Taf. xxi. tigs. 4 & 5. 



t Alter Prof. Kiikeiithal, of Breslau, the author of a paper on the 

 Ojiheliaceaj of tho ' Vettore Pisaiii' Expedition, Jeiiaische Zeitsch. 

 xxi. m. N. F. xiv. pp. 3r)l-;57.% Taf. xxi. (1887). 



