. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Pacific Coast of North America. 173 Fig. All the epimera are long and narrow and more or less rounde 1 posteriorly; they extend fully to the posterior angle of their corresponding segments, a character not found in any other species of the genus. The first abdominal segment is partly covered at the sides by the last thoracic segment. The first five segments are about equal in length and width. The terminal segment is slightly wider than long, equal in length to the other a
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Pacific Coast of North America. 173 Fig. All the epimera are long and narrow and more or less rounde 1 posteriorly; they extend fully to the posterior angle of their corresponding segments, a character not found in any other species of the genus. The first abdominal segment is partly covered at the sides by the last thoracic segment. The first five segments are about equal in length and width. The terminal segment is slightly wider than long, equal in length to the other abdominal seg- ments taken together, is impressed at the base, and posteriorly rounded. The uropoda are longer than t!ie last abdominal segment. Both branches are similar in shape and size; they are oar-like, witli truncately rounded Anilocm occidentalis. x 4. extremities. The legs increase slightly in length. The basis of all the legs is carinated on the inferior margin. Colour a light brown, marked witli numerous black dots over the whole surface of the body, with the exception of the posterior half of the last abdominal segment and the ianer branch of the uropoda, which are a light clear yellow without: spots. The outer branch of the uropoda, which is almost black, contrasts in a marked degree with tlie light inner branch. In the caudal segment the change from the darker to the lighter half is graduated, making the contrast less marked. Two individuals of this species were taken: one by the Fish Commission steamer 'Albatross,' station 3138, at a depth of 19 fathoms, and one by Dr. D. S. Jordan, both at Monterey Bay, California. One was imperfect. Type. No. 22567, N. M. Monterey Bay. Depth 19 fathoms. When compared with , Miers^, from Peru, this species diifjrs in the shape of the anterior portion of the head, which in A. Icevis is narrowed and rounded, while in A. occi- detitalis it is truncate; in the greater length of the first thoracic segment and the equ
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