402 The Philippine Journal of Science 1914 



Fig. 4. Palaemon lanceifrons Dana. Mature male, 62.5 millimeters long. 

 No. 6. 

 4*. Right cheliped of same. 



5. Palaemon lanceifrons Dana (local form). Mature male, 63.5 milli- 



meters long. No. 7. 

 5*. Left cheliped of same. 

 5 b . Right cheliped of same. 



5 C . Mobile finger of left cheliped (fig. 5 a ), inner aspect. X 3. 

 5 d . Immobile finger of same, inner aspect. x3. 

 5". Young male, 49 millimeters long. No. 1. 

 5'. Right cheliped of same. 

 5". Pigment marks on carapace of Palaemon lanceifrons Dana, 



the local form and Palaemon lanceifrons Dana var. montal- 



banensis var. nov. x2. 



6. Palaemon lanceifrons Dana var. montalbanensis var. nov. Old male, 



65.5 millimeters long. No. 12. 

 6°. Right cheliped of same. 

 (> b . Left cheliped of same. 



6 C . Immobile finger of left cheliped, inner aspect. x3. 

 6". Mobile finger of same, inner aspect. x3. 

 6'. Female, 45.5 millimeters long, with eggs. 

 6'. Cheliped of same. 



6 g . Young male, 51 millimeters long. No. 3. 

 6". Cheliped of same. 

 6\ Tip of telson of young male, 43 millimeters long. Xl6. 



7. Palaemon lar Fabricus. Old male, 114 millimeters long. No. 10. 



7". Right cheliped of same, inner aspect. 



?'\ Left cheliped of same, outer aspect. 



7 C . Young male. 



7 A . Left cheliped of same. 



7'. Chela of specimen of about the same size as the one shown 



in fig. r. X3. 



7*. Young male. 



7'. Left cheliped of same. 



7". Tip of telson of young male. x8. 



Plate III 



Fig. 8. Palaemon jaroensis sp. nov. Old male, 72 millimeters long. No. 6. 

 8'. Right cheliped of same, outer aspect. 

 8 b . Left cheliped of same, outer aspect. 

 # c . Outline of chela of left cheliped, hair removed. 

 8 i . Mobile finger of left cheliped. X2. 

 8". Immobile finger of same. x2. 

 8\ Mobile finger of right cheliped. x2. 

 8 % . Immobile finger of same. x2. 

 8\ Spines on palm of No. 6. X2. 

 8'. Spines on finger of No. 6. X2. 

 8'. Right cheliped of female. No. 7. 

 8*. Left cheliped of same. 

 9. Palaemon lepidactylus Hilgendorf. Old male, 58.5 millimeters long. 

 9°. Left cheliped of same, outer aspect. Carpus shown drawn 



away from palm and hence longer than stated in text. 

 9 b . Right cheliped of same, outer aspect. 





