Marine isopods collected in the Philippines by the fisheries steamer Albatross in 1907-08 . There is a small dentation about themiddle of the outer margin. Proceedings U. S. National Museum, Vol. 37—No. 1701. 75 76 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 37. On the ventral side of the head the anterior margin is providedwith four spines on either side close to the antenna? and within them. The first segment of the thorax is short andnarrow and almost inconspicuous. The sec-ond segment is about half as long as the third,but is equally wide. The second is coveredwith small spines and tuberc


Marine isopods collected in the Philippines by the fisheries steamer Albatross in 1907-08 . There is a small dentation about themiddle of the outer margin. Proceedings U. S. National Museum, Vol. 37—No. 1701. 75 76 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 37. On the ventral side of the head the anterior margin is providedwith four spines on either side close to the antenna? and within them. The first segment of the thorax is short andnarrow and almost inconspicuous. The sec-ond segment is about half as long as the third,but is equally wide. The second is coveredwith small spines and tubercles, the third atthe sides and on the posterior half. Thefourth segment is a little longer than thethird and a little narrower; it is also fur-nished with tubercles. The fifth segment isone and a half times longer than the fourthand has only a very few tubercles on thedorsal surface. The sixth segment is a littleshorter and a little narrower than the fifthsegment and is furnished with but few tuber-cles, more, however, than on the fifth seventh segment is short and almost in-. Fig. 1.—Gnathia tuber-culata. Head andthorax. x 14j.


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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1910