File:The embryology and metamorphosis of the Macroura (1891) (14773891564).jpg

Identifier: embryologymetamo00brook (find matches)
Title: The embryology and metamorphosis of the Macroura
Year: 1891 (1890s)
Authors: Brooks, William Keith, 1848-1908 Herrick, Francis Hobart, 1858-1940 National Academy of Sciences (U.S.)
Subjects: Crustacea Crustacea
Publisher: (Washington : National Academy of Sciences : Government Printing Office
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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larva. L.=4.Fig. 3. Head of young from same brood. Four days old. x52.Fig. 4. Right first pereioi)od of larva of A. saulcyi, var. brevicarpus, before the molt preparatory to stage shown in Pig. 1. Seen from inner side. x52. Swimming hairs of exopodites rudimentary.Fig. 5. Egg embryo of A. saulcyi, var. longicarjyus, nearly ready to hatch. The large chela of the left first pereiopod is conspicuous below the autenni*. x46.Fig. 5a. To show natural size of the same. Slightly too large. Dimensions: xooXySoiuch.Fig. 6. First and second maxilla of first larva (Fig. 1) before preparatory molt. The parts are glov^ed with the embryonic skin, which is usually cast off at the time of hatching. X227.Fig. 7. Left first pereiopod of same, seen from inner side. x52.Fig. 8. Third larva of Alpheus saulcyi, var. brevicarpus. From same brood as second larva. Fig. 2. Not over twenty-eight hours old. Food yolk not wholly absorbed. x26.Fig. 9. Telson and rudimentary uropods, seen from below, x 52. PlaU XXf
Text Appearing After Image:
t ■ //. Hfirn,rh, tleJ.. ALPHEUS SAULCYI ■ ^uU>pi;k:i ^ IbB IM 506 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. Plate XXII. Fig. 1. Left second pereiopod of first larva of A. saulcyi, var. brevicarpm, from inside. x64. Fig. 2. Left third pereiopod of same, from inside. x64. Fig. :i. First maxilla of first larva of A. xanlcyi from brown sponge. x25o. Fig. 4. Left second abdominal appendage of first, larva of Alpheus mulctji, var. hrevica/rims. x 64. Fig. 5. Left first abdominal appendage of the same, x (U. Fig. 6. Eostrum of the same, seen from above, x 64. Fig. 7. Eight second antenna of the same, seen from below. x64. Fig. 8. Eight first antenna of the same, seen from above. x4. Fig. 9. Second antenna of young of Alphetis saulcyi, var. brevicarpus, six and a half days old. x 64. Fig. 10. First antenna of the same. x64. Fig, 11. Head of male of Alpheus smtlcyi, var. lougicarpuH, from loggerhead sponge. Median spine of rostrum wanting. Drawn from life. L.=5.5. x3I.Fig. 1

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