Miscellaneous. 125 lateral pairs, Avhich decrease from the first to the fourth, which is much reduced ; on the rostro-gastric groove three pairs of teeth,^ of which the middle ones are the most strongly marked; hasal joint of the inner antenna with three anterior processes ; iscluopodite of tlie third maxUllind longer than the meropodite ; the inner branch of the last three pleopoda is biarticulate ; in the first pair of thoracic feet of the male it is the right chela that is modified. A species from small depths found in the N^orth Sea, on the shores of Ireland, in the Channel, and in the Mediterranean. 5. Galathea strigosa, Linne. There are no epipodites upon any of the thoracic fed; carapace with the regions well marked by deep grooves furnished with long and close-set hairs ; rostrum elongated, with nine teeth, of which the median one is the longest and the last lateral pair the smallest ; from two to six teeth (according to age) upon the rostro-gastric line ; two teeth a little behind the insertion of the outer antennse and two other lateral ones on the hepatico-gastric grooves ; basal joint of the inner antenna with three processes ; ischiopodite of the third maxilliped longer than the meropodite ; the inner branch of the last three pleopoda of the male is biarticulate. The two chelae of the first thoracic feet are modified in the adult male. This large species, which is found only at and below a depth of 10 fathoms, is the most widely distributed Galathea of our coasts ; it has been noted as occurring from the North Cape and all the northern seas of Europe to the Canary Islands, and in the Mediter-ranean and lied Sea. — Comptes Eendus, June 11, 1888, p. 1686. [Bemarl's on the Phylogeny of the Lamellibranchiata. By Dr. Beitjamin Shaep. The author brought forward some points regarding the classifi-cation of the Lamellibranchiata, and stated that in considering this group a diversity of type was to be found that is equal to, if not greater than, that found in any class of the animal kingdom, with the possible exception of the Hexapoda. In examining the different forms, he pointed out two well-marked extremes, Ostrea and Aspergillum. In the former, as is well known, the two large unequal sheUs entirely cover the body, and they are closed by one large muscle, the adductor. The large and important organ, so common in the Lamellibranchiata generally, the foot, is entirely absent. The mantle-edges are separated for nearly their whole extent, and there is no indication whatever of the mantle uniting to form a siphon. In Aspergillum, on the other hand, the two shells are so diminu-
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