110 TUK NAUTILUS. 



great scallop, six or seven inches in diameter, is good eating, and we 

 lay them aside to appear later in a different form on the breakfast 

 table. The large stones and dead shells are looked over carefully 

 and we find attached to them the Crucibuhuti striatum, and tlie Chi- 

 tons, Tonicella marmorea, Tachydermon albus, and the Tachydermon 

 ruber. On a previous trip we dredged a single, fine specimen of" the 

 Hanleya mendicaria. This rare Chiton is usually found in much 

 deeper water than the bay. 



The remaining sand and mud is now poured into large sieves with 

 handles and looked over carefully. We find alive the beautiful 

 Margarita obscura, Margarita iindulata and Margarita cinerca. 

 These are not uncommon, however, and are hurried into tlie glass 

 jars of water, to be studied later under the microscope. We are 

 always glad to find the Scalaria groenlandica, tliongh we find few 

 alive. Many kinds of Bela are found, among which are tlie common 

 Bela incisula, also the Be/a scalaris, Bela harpularia, BcJn plfiiroto- 

 maria, and the more rare Bela violarea and Bela goiddii. Also in 

 this section we find the Velntina haliofoidea. Tricliotropis bnrenlis, and 

 the Lunatia groenlandica, and the Trophon clathratus. 



The contents of the sieves are now washed over the side of the 

 scow; the mud washed away and the cleaned sand ami shells poured 

 into pails, labelled with the station, deptii of water and cliaiacter of 

 bottom, to be looked over after being dried at home. 



A great many specimens are in this way obtained, ami much ma- 

 terial collected to be separated on rainy days. 



We move on now a quarter of a mile to a station with mmlily liot- 

 tom at 2o fathoms, wdiere in a few hauls of black, sticky mm! \m' find 

 numbers of Ledatenui sulcata, Yoldia tliraciaefr/rmis ixn^l Vo/dia S"/>o- 

 tilla, with quantities o^ Astarle uiidata, Cardita borfalis, a few ol the 

 Cardita novangliae, Cardium pinnulatum, Tliracia trunrdfn^ also, of 

 course, great numbers o\' Nncula proxima, Nucula delphiitoilonia and 

 Nucvla tenuis. 



Another haul nearer shore, on harder bottom, bi-ings us Rissixi 

 carinata and Kissoa exarata. Here also we find tiie ClirysadoDiiis 

 decemcostatus, the Sipho stimpsonii and Sipho pygmaeus, and a few 

 young Serripes groenlaiidicus , with the pretty zig-zag niarkiiij;s wliich 

 disappear in the older specimens. 



The material is also washed and sifted after being pi( ked over, 

 and with aching backs we rest in the scow as we go ploughing 



