38 HULL SCIENTIFIC AND FIELD NATURALISTS' CLUB. 



ECHIXODERMA. 



Ophiocoma rosula, Forbes, f 



[/raster rubens (Linn.). Crab pots, Hornsea. 



Solaster papposa ( Linn. 



VERMES. 



Nemertini. 



* Amphiporus lactifioreus (Johnst.). The Den, under stones. 



* Tetrastemma dorsalis (Abild.). Well Creek. 



*Lineus gesserensis (Mull.). Stone Creek and Skeffling, under stones. 



POLYCH.ETA. 



* Lepidonotus squamatus (Linn.). Well Creek. 



*. Vein's diversicohr, Mull. Saltend, &c; brackish drain, Cherry Cob 



Sands. 

 *.Y. pclagica, Linn. Saltend, &c. 

 X. fucata, Sav. In whelk shells occupied by hermit crabs, crab 



pots, Hornsea. On an average, one in every three shells 



examined. 

 * Nephthys longisetosa, CErst. In sandy mud, StoneCreek, Skeffling, &c. 

 *Nerine coniocephala, Johnst. Under stones, the Den. 

 *Polydora ciliata (Johnst.). In borings in whelk shells, Hornsea; in 



chalk. Well Creek, Stone Creek, &c. 

 Dodecaceria concharum, CErst. In borings in whelk shells, Hornsea. 

 *Amphitrite Johns toni, Mgrn. Well ('reek ; Stone Creek. During 



S.W. gales the mud between the chalk blocks is washed away 



and the upright tubes are destroyed; the worm then takes refuge 



in the lower part, which usually runs horizontally along the 



under surface of the stones. 

 *Terebetta conchilega, Pall. The Den. 

 *Pectinaria belgica, Pall. Dredged offTrinity Sand. 

 'Arenicola marina, Linn. From Stone Creek eastwards. 

 Filograna implexa, Berkeley. On whelk shells, Hornsea. 

 *Spirorbisborealis, Daudin. On Funis and Vesicularia, the Den ; on 



whelk shells, Hornsea. 

 *Sabellaria alveolata, Linn. On whelk shells, Hornsea, crab pots ; 



dredged oft' Trinity Sand. 

 'Spin seticornis (Fabr. ). Skeffling, amongst clusters of mussels in the 



zostera beds. 



POLVZOA. 



Eucratea cheUtta (Linn.). On Cam pan 11 land (?) ; crab pots, Hornsea. 

 Scrupocellaria reptans (Linn.), j 



S. scruposa (Linn.). Crab pots, Hornsea. 



Buguta turbinata, Alder. 

 *B. plumosa (Pall.). Well Creek ; alive, but detached. 

 Flustra Jbliacea, Linn. Small colonies on Laminaria, crab pots, 



Hornsea. 

 * Membranipora lacroixii, Hincks. On Potatnogeton, &c, brackish 



drain, Cherry Cob Sands. 

 * M. monostachys, Busk. On stones near high-water mark, Saltend, 

 Skeffling ; on Mytihis and stones near low water. Well Creek, 

 Stone Creek, Paul! : brackish drain, Cherry Cob Sands. 



