. Bulletin of the Museum of Comparative Zoology at Harvard College. HvDROiDEA Of the Blake. pLATf ^^o—>-- ^ Lu^iu Tilt No. 11. — On some Young Stages in the Development of Hippa,Porcellana, and Pinnixa. JB)/ Walter Faxon. I. Hippa talpoida. During the month of August, 1877, I procured large numbers of Hippatalpoida on the bathing-beach near Nobska Point, Woods Hole, Massachusetts,the locality made known by Professor S. I. Smith. Among them were manyovigerous females, from which I obtained the first stage of the larva. As asupplement to Professor Smiths paper on the early stages of this
. Bulletin of the Museum of Comparative Zoology at Harvard College. HvDROiDEA Of the Blake. pLATf ^^o—>-- ^ Lu^iu Tilt No. 11. — On some Young Stages in the Development of Hippa,Porcellana, and Pinnixa. JB)/ Walter Faxon. I. Hippa talpoida. During the month of August, 1877, I procured large numbers of Hippatalpoida on the bathing-beach near Nobska Point, Woods Hole, Massachusetts,the locality made known by Professor S. I. Smith. Among them were manyovigerous females, from which I obtained the first stage of the larva. As asupplement to Professor Smiths paper on the early stages of this animal,* Ipresent the following description and figiires of the fii-st zoea-stage, Smithsseries beginning with what he presumes to be the second zoea-stage. The carapace (Plate I. Figs. 5, 6, 15) is oval, smooth, strongly convex above,curving downward and inward on the sides. It sends a long blunt processforward below the eye-stalks (Plate I. Fig. 6 b). Behind, it presents a deepsinus for the accommodation of the abdomen (Plate I. Fig. 15 6). Anteriorlyit is produced between the eye-stalks in
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Keywords: ., bookcentury1800, bookdecade1860, bookidbullet, booksubjectzoology
