398 



DISCOVERY REPORTS 



Stages 1-3 of Caridea as equivalent to the Protozoea of Penaeidea and the Calyptopis of 

 Euphausidae (Gurney, 1926), the total number of possible stages in Caridea is precisely 

 the same as it is in Euphausidae. 



LATREUTES MUCRONATUS (STIMPSON)? 



Stage IV. Length 3-9 mm. (Figs. 134-137). 



Rostrum longer than antennule, with three dorsal teeth ; carapace with tooth in front 

 of anterior dorsal papilla; ventral margin with a series of small anterior teeth and 



Fig. 134. Stage IV. 



Latreutes mucronatiis} 

 Fig. 135. Telson. Fig. 136. Antenna. 



Fig. 137. Maxilla. 



conspicuous posterior tooth. Pleura of abdominal somite 2 very large, pointed behind; 

 somite 3 with small median dorsal spine; somite 5 with large lateral spines. Telson four 

 times as long as wide, with two pairs of lateral spines and 6 + 6 terminal spines. Anal 

 spine present. 



