184: On Annelida Poly cTicela from the North Sea. 



described. M'Intosh's specimens were similarly deficient 

 (1900, p. 414). 



Tlie palps appear to be long, slender, and tapering, like 

 those of Sthenelais Umicola, Elilers. The posterior end o£ 

 the annelid is slender and has apparently two caudal cirri. 



An examination of the complete head will determine 

 whether this form shall remain in the genus Sthenelais. 



Sthenelais Umicola^ Ehlers, 1864. 



One specimen was taken along with numerous examples of 

 Ophiodromus flexuosus, Delia Chiaje, in 56° 48' N., 1° 19' E., 

 in 94 m. It is a deep-water form, ranging from 30 to over 

 400 fathoms, and is never found between tide-marks. 



The body is small and incomplete. All the scales have 

 been lost, and the head is in a bad state of preservation. 



Sthenelais Jeffrey sii, M'Intosh, 1876. 



Specimens of this annelid were taken from the seas to the 

 north of the Shetland Islands. It has been recorded only 

 from the Atlantic Ocean to the west of Ireland, and has still 

 to be found in the North Sea. It would seem to prefer a 

 deep-water habitat. 



The largest of the specimens (incom})lete) are about 35 mm. 

 in leno-th. The body is long and narrow, and tapers gently 

 towards the posterior end. No eyes are visible in any of the 

 specimens. The proboscis has ten irregularly conical terminal 

 papillaj dorsally and ventral ly. 



Bibliography. 



Clapaeede. 1870. Suppl. aux Anijel. de Naples. 



DiTLEVSON. 1911. ' Annelids from the Danmark Expedition (1906- 



08 J.' Copenhagen. 

 D'Urban. 1880. Ann. k Mag. Nat. Hist., October 1880. 

 Fauvel. 1911. Campagne Arctiquede 1907 (Due d'Orleans) : "Anne- 



lides Polychetes." 

 Hansen. 1882. ' Norske Nordhavs-Expedition, 1870-78.' Vol vii 



Annelida. Christiania. 

 Harvey Gibson. 1886. L. M. B. C. Report, No. 1. Proceedings Lit. 



and Phil. Soc. Liverpool, vol. xl., Appendix. 

 Levinsen. 1883. " Systematisk-geografisk Oversigt over de nordiske 



Annnlata, Gephyrea, Chfetognathi, og Balanoglossi," Vidensk. 



Meddel. fra den Naturh. Foren. i Kjobenhavn, 1882-83. 

 Malmgren. 1865. ' Nordiska Hafs-Annulater.' Stockholm. 

 Mabenzeller. 1877. ' Die Ccelenteraten, Echinodermen, und Wiirmen 



der k.-k. osterreichisch-ungarischen Nordpol Expedition.' 

 . 1902. * Siidjapanische Annel.' iii. Wien. 



I 



