268 Mr. J. W. Pi vde on Annelida Polychata 



Moroian Haibour, and Adolf Heinen ^ found it at no less 

 than thirteen stations in the North Sea. Station 58° 4:8' N., 

 1° 20' E., is his most northerly record, while Station 52° 50' N., 

 3° 20' K., is his most southerly. Tiie most northerly record 

 in the 'Goldseeker' expedition is Station 18 A, 00° 57' N., 

 5° 47' \V. On the otiier hand, the most southerly point is 

 Station 39 B, 57° 59' N., 0° 57' E. 



JSephthys homhergii, Lamarck, 1818. 



It is stated in the Monograph (vol. ii. part i. p. 19) tlia,t 

 this annelid is found from Shetland to tlie Channel Islands, 

 along both shores, and occurring- alike in the tidal region and 

 in deep water; but only six are found in this collection, three 

 being obtained at a depth of 10 fathoms at OUiberry, Shet- 

 land. They were dredged along with Notophyllum folio sum, 

 Sars, and JIarmothoe imbricata, Linn. Li the 'Porcupine' 

 expedition of 1896 this species was dredged at a depth of 

 96 fathoms. 



The largest specimen had 89 segments, but a specimen 

 having 130 segments is mentioned in the Monograph, while 

 Jrleinen adds : " Audouin und J\lilne-Ed\vards gebeu flir die 

 grossteu Tiere sogar 200 Segmente an." The body has 

 similar proportions to that of N. ccaca, but is considerably 

 less. The colour has faded, however, owing to immersion in 

 spirit, but fresh specimens have an iridescent pinkish body, 

 bluish wliite along the median line dorsally and whitish 

 laterally, with bright red branchiae along the sides f. 



The foot differs from that of A^. cceca, for the dorsal 

 lamella is smaller, while the ventral lamella is more ovoid 

 tliau pointed. The most diagnostic feature is the presence 

 of a prominent papilla below the point of the spine iiiN. hom- 

 beryii. The gut contained diatoms and small crustacean 

 liirvte. From the lle])orts on the 'Errantiate Polych;x3ta of 

 Ja|)an,' a country in almost the same latitude as our own, 

 there is no mention of N. homberyii, nor is it recorded in the 

 * Challenger ' lieports. 



Nephthys honibenjiiy var. kersivalensis, MTntosli. 



In haul 187 two specimens of this annelid were obtained 

 at a ilepth of 545-788 m. It differs from A'', hoinberyii, 



Ijauiarck, in having the ventral lanudla in the anterior liiird 



* Vide ' J>ie Nophthydeun und L\coriduen der Xord- uiid Ostaee,' by 

 A'lolt lleiueu. 



t See ' Mono{.frnpyi,' vol. ii. })art i. pi. xliii. fig. 3. 



