. The embryology and metamorphosis of the Macroura . lirooks, »<• hfprrirjr ,</<•/ ALPHEUS 496 MEMOIRS OF THE NATIONAL ACADEMY OP SCIENCES. Plate of Alpheus, drawn from nature by W. K. Brooks. Fig. 1. Side view of Alpheus minor after thesecond molt and in the third larval stage. Zeiss A. 2. This larva was about ninety-five one-thousandths of an inch long from the tip of the rostrum to the tip of the 2. Dorsal view of Alpheus minor after the first molt and in the second larval stage. This specimen was hatched at 9 p. m., May 30, 1881, and the drawing was
. The embryology and metamorphosis of the Macroura . lirooks, »<• hfprrirjr ,</<•/ ALPHEUS 496 MEMOIRS OF THE NATIONAL ACADEMY OP SCIENCES. Plate of Alpheus, drawn from nature by W. K. Brooks. Fig. 1. Side view of Alpheus minor after thesecond molt and in the third larval stage. Zeiss A. 2. This larva was about ninety-five one-thousandths of an inch long from the tip of the rostrum to the tip of the 2. Dorsal view of Alpheus minor after the first molt and in the second larval stage. This specimen was hatched at 9 p. m., May 30, 1881, and the drawing was made at 9 a. m. on May 31. The specimen was eight one-hundredths of an inch 3. Dorsal -view of a young specimen of Alpheus heterochelis from Beaufort. The specimen was one-fifth of an inch long. It was reared from the egg in an aquarium in the laboratory, and it was fifteen days old when the drawing was made. It is a little older than those which are shown in PI. xx, Figs. 2 and 3. PlcLie ALPHEUS s*>*awhiiiiiiiip,n |[m»r«ti S. Mis, 94- -32 498 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. Plate of Alpheus, drawn by W. K. Brooks from sketches by F. H. Herrick. Fig. 1. Side view of tirsl or second larval stage of Alpheus heteroehelis from Nassau, drawn onthe night of April 15, 1887. Zeiss A. camera. / Fig. 2. Ventral view of the third larval stage of Alpheus heteroehelis from Nassau, drawn AprilIS, 1887. Fig. .3. Ventral view of fourth larval stage of Alpheus heteroehelis from Nassau, drawn April21, 1887. Fig. 4. First niaxilliped of the first larval stage of Alpheus minor. PUiLe XVIII
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Keywords: ., bookauthor, bookcentury1800, bookdecade1890, booksubjectcrustacea
