Skip to main content

Free Content Larval Development of Callinectes Similis Reared in the Laboratory

Download Article:
(PDF 1264.0185546875 kb)
Freshly hatched larvae of Callinectes similis Williams, the lesser blue crab, were reared to the first crab stage. Eight zoeal stages and one megalopa stage are described with particular reference to types of setae on appendages. Updated information on the development of the commercial blue crab, Callinectes sapidus Rathbun, is also given, as well as similarities and differences between C. similis and C. sapidus. The zoeae of C. similis and C. sapidus are so similar that they can only be separated by a number of minor differences. The dorsal spine of C. similis is significantly longer than that of C. sapidus in all zoeal stages. Other structures, such as the rostrum and antennae, are either longer in early zoeal stages of C. sapidus than in C. similis, or the structures of the two species are not significantly different. In later stages, however, structures measured were generally significantly longer in C. similis than in C. sapidus. Also in later zoeal stages, there are generally small differences in setation of appendages.

There are diagnostic differences in lengths of parts of the claw of the first leg and setation of pleopods of the megalopa of the two species. There are also minor differences in the setae of the scaphognathite, in seta of the epipodite of the 3rd maxilliped and in aesthetascs of antennules of the two species.

7 References.

No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 1977-10-01

More about this publication?
  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more