Miscellaneous. 447 
resort near the Hague, and I made a note of the shells that had 
been thrown up on the sands. ‘The season being over, I had the 
beach to myself. As I am not aware that any list of the Mollusca 
from the Dutch coast has been published since the work of Dr. 
Herklots, now nearly twenty years ago, I subjoin the names of those 
species which I noticed during my solitary ramble. Although all 
of these species are common in the North Sea, one of them at least 
(Montacuta bidentata) is not mentioned in the above work on the 
Mollusca of the Netherlands ; and the list may be useful to give the 
modern nomenclature. 
CoNCHIFERA. 
Ostrea edulis, Linné. 
Pecten varius, Z. 
Mytilus edulis, Z. 
Montacuta bidentata, Montagu. 
Cardium edule, Z. 
Tellina balthica, Z. Larger than 
British specimens, and thrice 
the size of those from the 
Baltic. 
tenuis, Da Costa. 
—— fabula, Gronovius. 
Donax vittatus, Da Costa. 
Mactra solida, Z., and var. truncata. 
subtruncata, Da Costa. 
stultorum, Z. Very large. 
Scrobicularia alba, W. Wood. 
piperata, Bellonius. 
Solen ensis, Z. 
siliqua, L. 
Mya truncata, Z. 
Pholas candida, LZ. 
GASTROPODA. 
Trochus zizyphinus, Linné. 
Littorina obtusata, L. 
litorea, Z. 
Sealaria communis, Lamarck. 
Natica catena, Da Costa. 
Alderi, Forbes. 
Buccinum undatum, Z. 
Nassa reticulata, Z. 
Lutraria elliptica, Lamarck. 
This list gives a total of twenty-seven species, viz. nineteen bi- 
valves and eight univalves. All of them inhabit sand except the 
first-named three species of univalves, which inhabit rocky places. 
In the great wood between the Hague and Scheveningen I ob- 
served a few land and freshwater shells, viz. :—Zonites purus, Alder ; 
Z. radiatulus, Ald.; 4. crystallinus, Miller; Z. fulvus, Mull. ; Helix 
pulchella, Mull., and var. costata; Cochlicopa lubrica, Miill., var. 
lubricotdes; Carychium muumum, Miull.; and Unio tumidus, Philipp- 
son. 
These lists could easily be quadrupled by examining the refuse 
from fishermen’s boats and spending more time than I had to spare. 
4] Seymour Street, 
7 Noy., 1881. 
An Abbreviated Metamorphosis in Alpheus heterochelis. 
By A. 8. Packarp, Jun. 
This species and Alpheus minus, Say, are very abundant, living 
in the larger excurrent orifices of the large sponges which exist 
from the depth of one or two feet or more to deeper water, at Key 
West, Florida. A. minus, however, is far more abundant than the 
larger species. I found several of A. heterochelis with far advanced 
embryos in the winter of 1869-70, and on removing the embryonic 
