164 NEW YORK STATE MUSEUM 



normal. Second gnathopoda of both sexes elongated and with small 

 dactylus. Pereiopoda slender and elongated. 

 Occurs among hydroids and algae. 



Fig. 33 Microdeutopus gryllotalpa (After Sars) 



Length 6 mm. Color densely variegated with dark brown. 

 Taken at Bayshore and at Bartow. 



Family 



Antennulae elongated, and either with or without a secondary 

 flagellum, and generally smaller than the antennae, specially in the 

 male. Gnathopoda more or less unequal, the posterior ones larger 

 and sometimes enormously developed in the male. Coxae small, 

 fifth pair with the anterior lobe much deeper than the posterior. 

 Terminal uropoda stout, biramous or uniramous, and hooked. 

 Telson small. 



This family resembles the preceding, but the hooked terminal 

 uropoda distinguish it. 



Amphithoe valida Smith 



Amphithoe valida Smith, S. I. In Verrill. /. c. 1874. P-563. 



Antennulae without a secondary flagellum, slender and about 

 equal in length to the antennae, and less than half length of body. 

 Flagellum of antennae longer than ultimate joint of peduncle. 

 First gnathopoda with carpus and propodus broad. Second gnatho- 

 poda in male with carpus short, propodus large and thick, broadest 

 distally and with palm transverse, and with a broad, low tooth in 

 the middle. 



Length 10-13 mm - Color green, with numerous stellate pigment 

 spots. 



