The Journal of experimental zoology . versal, a newsnapping chela being regeneratedin place of the old snapping and ^?°- ^^• a new cutting chela in place of the ^^^^ °^ Alpheus dentipes (X4). Left-hand W^- T ^1 1 ^^ figure: cutting chela. Right-hand figure: snap- cuttmp-one. In the latter case , , t^ ? ,? \ , , _.^ . A 1 • PS chela. Dotted lines represent the lengths Frzibram,workmgon A. dentipes measured (see text, p. 91).and A. platyrrhynchus mentions the fact that the newly regenerated cutting chela is relativelylarger as compared with the snapping chela than in the animalbefore the operati
The Journal of experimental zoology . versal, a newsnapping chela being regeneratedin place of the old snapping and ^?°- ^^• a new cutting chela in place of the ^^^^ °^ Alpheus dentipes (X4). Left-hand W^- T ^1 1 ^^ figure: cutting chela. Right-hand figure: snap- cuttmp-one. In the latter case , , t^ ? ,? \ , , _.^ . A 1 • PS chela. Dotted lines represent the lengths Frzibram,workmgon A. dentipes measured (see text, p. 91).and A. platyrrhynchus mentions the fact that the newly regenerated cutting chela is relativelylarger as compared with the snapping chela than in the animalbefore the operation. Wilsons result on the Beaufort, N. C,species (H. heterochelis) agrees with that of Przibram except thatin the case where both chelae were removed the new cutting cheladoes not approach the new snapping chela as nearly as in thespecies upon which Przibram worked. Wilson further added theinteresting result that when the snapping chela is removed and thenerve leading to the cutting chela is cut below the breaking joint. 86 Charles Zeleny. Post-spin us thoracic length in 7,0 9 0 ?S 40 c O 0 y^ — ?— —? -a >.^ x_i>^ , — -— Ik - — *» 20 ? \r —? — ^ 0 a — ? X 0 X 1£ 10 > • S 0 1 40 30 20 10 60 50 40 30 5 20 Ij I 10 0 10 0 o pG O A > X ^jfi ^ < ( k^ Q 7 X c 3 X ; 0 A ) G ,X . o 0®^ c )§ X X i ^ <s X, ) O i^ y X o ( 1 Post-spinous thoracic length in millimeters. 60 50 40 30 20 10 Fig. dentipes. Lower data—Time of moult in days after operation. Upper data—Intervalbetween first and second moult in days. Abscissae are post-spinous thoracic lengths. O = Cuttingchela (Cu) alone removed. 0 = Snapping chela (Sn) alone removed. X = Both chelae (Cu -|- Sn)removed. In the upper data the upper line is drawn to fit the first two groups of cases (one chela aloneremoved) and the lower
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Keywords: ., bookauthorwi, bookcentury1900, bookdecade1900, booksubjectzoology
