176 
MOLLUSCA. 
Margaritana margaritifera (L.), in the streamlets of the Voigtland, is the 
subject of a paper written by C. F. Semmler, Mittheil. voigtl. Ver. Naturk. 
ii. 1870^ p. 19. — M. arcuata (Barnes) defended as specifically distinct from 
the European margaritifera^ L., by Gould, Invert. Mass. p. 170. 
Alasmodonta penchinati and berlani, spp. nn., Bourguignat, Ann. Mai. p. 37, 
mouths of the Danube. 
Anodonta. Tlie embryonal shell is not lost but still to be 
seen in younger specimens, the umbones of which are not yet 
decorticated. Kobelt, Nachr. mal. Ges. ii. p. 149, and Zool. 
Gart. 1870, p. 172. 
Anodon, Sowerby concludes, in Reeve’s ConchologiaIconica,the monograph 
of this genus, with pis. 25-37. figs. 96-154. The apparently new species 
are : — A. glahrus \-er or Anodonta glahrd\, Val. ?, pi. 25. fig. 97, locality un- 
known } tricostatus, pi. 25. fig. 98, China ; rio-platensis, pi. 26. fig. 101, Rio 
Plata j pholadiformis, pi. 27. fig. 106, Montreal; subgibbosus, Anthony, MS., 
pi. 27. fig. 107, Michigan; quadriplicatus, pi. 28. fig. 40, Potomac; ciconia, 
Gould, MS., United States, pi. 29. fig. 115 ; vignonanus, Bernardi, MS., 
pi. 29. fig. 116, Gaboon ; cumingii, Lea, MS., pi. 30. fig. 122, IMalacca ; 
brevis, pi. 30. fig. 124, Rio Plata ; cochlearis, pi. 33. fig. 135, locality un- 
known; scho7nbw'gia?ms [gk], pi. 34. fig. 137, British Guiana. 
Anodonta kicked, sp. n., with var. interrogationis [I], and A, fallax, sp. n., 
Colbeau, Ann. mal. Belg. iii. (1868) p. 107, pi. 3. figs. 1-3, Belgium. [The 
first may bo safely united witli p/sema/Zs, Nilss.] 
Anodonta benacensis. Villa, and A. leprosa, Parr., maintained as distinct 
species peculiar to Lake Garda. Betta, Moll. prov. Veron. pp. 136, 137. 
MvTILIDiE. 
Mytiliis edulis, L., very common in the estuaries of East Fries- 
land, spawning in the months of April and May. The young 
are found living and growing on spots which are covered by 
water for only three or four hours in the day. This species is 
not much esteemed as food by the inhabitants. Metzger, JB. 
Ges. Hannov. p. 29. 
The breeding of Mytilus edulis, L., has been attended to in 
Northern Germany in the first half of the year 1870. The 
circular of the Deutscher Fischerei-Verein,^^ no. 3, pp. 10-18, 
and especially the pamphlet which Prof. K. Mobius has been 
induced by that Society to publish, contain useful information 
on this subject. The latter comes to the conclusion that the 
breeding of the mussel may be much improved in the Baltic 
and in the North or German Sea by floating hurdles on which 
the young mussels may fix themselves. The same subject is 
treated by F. C. Noll, with general remarks on the consumption, 
and special reference to Mobilises paper, Zool. Gart. 1870, pp. 
285-290. Some particulars concerning the actual culture of 
this mollusk in Kiel by Mobius, Zool. (Part. 1870, p. 126. 
In North America Mytilus edulis is not used as food by man. Gould, Invert. 
Mass. p. 185. 
