Larvae Information Summary for  Pandalus hypsinotus
( not available )

Main Ref: Berkeley, A.A. 1931
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)        
Preanal L. % TL        
Place of development other
Larval area British Columbia (Canada)
Yolk-sac       Ref:  
Yolk   Oil globules  
First stage: delicate, transparent form with a yellow-brown tinge in the legs; brownish yellow chromatophores on both rami of all pereiopods and maxillipeds, and on the anterior side of the eyes, and a big one at the base of the telson; faint pink tinge at the tip of both pairs of antennae, a little red about the mouth, and a slight tendency to yellow down the ventral surface of both thorax and abdomen; length is about that of a first stage P. danae, namely 6 mm but the body is much more slender; eyes are, of course, immobile, and their size varies somewhat in proportion to that of the carapace; exopodites of the maxillipeds, used in swimming, are extended laterally; other rami and all the pereiopods are held directly under the body, the third and fourth pereiopods being carried forwards under the middle line of the thorax; incisor process of the right mandible has only one large tooth at the tip and there are two small teeth between this and the molar process; incisor process of the left mandible has three teeth, two fairly large and one small, and there are none between the processes; basipodite of the first maxilla bears nine short, stout spines; proximal expansion of the exopodite of the second maxilla is only slightly developed, and the whole lobe only bears fourteen setae; similarly on the other lobes of this appendage, and on all the remaining appendages there is a general tendency for fewer setae to be present than on the corresponding appendages of P. danae; moreover all appendages posterior to the mandibles are much smaller in proportion to the body than they are in P. danae; while, on the other hand the two pairs of antennae and the mandibles are slightly larger proportionately in P. hypsinotus.
Post larvae
Striking feature  
Striking shape lateral   dorsal  
Striking feature  
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
  L 1st feeding Ref. Months of presence of larvae
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod     Sep Oct Nov Dec
Water parameters     Metric characters
Entered by: Parducho,Vina Angelica - 17.07.13
Modified by: Parducho,Vina Angelica - 27.05.15
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