140 Bulletin, Vanderhilt Marine Museum, Vol. Ill 



and the Cape Verde Islands. Littoral to 30 fms. The '*Ara" speci- 

 men is the first specific record from Morocco. 



Material examined: One specimen, dredged in 11 fms., Casa 

 Blanca, Morocco, August 20, 1926, by the ^'Ara." 



Technical description : Animal two to two and a half inches long. 

 Rostrum directed slightly upwards distally, tip bifid; ventral margin 

 normally armed with three teeth ; dorsal margin armed with seven to 

 ten teeth in addition to the bifid apex ; these teeth distributed as shown 

 in the plate, the last two on the carapace and the next one above the 

 orbit. The shorter branch of the outer antennule is fused with the 

 longer branch for about two-fifths of its length ; the three flagella have 

 the relative lengths shown in the figure. The scaphocerite is widest 

 proximally and extends a little beyond the antennular peduncle; the 

 flagellum is about one and two-thirds times the body length. The 

 palp of the mandibles is two-jointed. 



The first pair of legs extend beyond the tip of the scaphocerite. 



The second pair of legs are much stronger and extend beyond the 

 tip of the scaphocerite by about one-half to three-fifths of the length 

 of the carpus and the entire length of the propodus. The propodus is 

 slightly longer than the carpus; the fingers are nearly equal to the 

 palm. 



The coloration of the species, which is marbled, is said to be quite 

 variable, usually resembling that of its environment. 

 Synonymy. — Cancel' squilla Olivi, Zool. Adriatica, Cat. Anim, Golfo 



Venezia. 1792, p. 49. 

 Palaemon squilla Bell, British Stalk-eyed Crust., p. 305 and text fig., 



1853. 

 Leander squilla Senna, Bull. Soc. Entom. Ital., Ann. XXIV, 1903 

 (and extensive synonymy). — Kemp, Sci. Invest. Fish. Ireland, I, 

 1908, p. 132, pi. XX, fig. 3 a-e (1910). 



Genus : macrobrachium Bate. 



MacrobracMum acanthurus (Wiegmann). 

 Plate 49. 



Name : Velvet fingered fresh water shrimp. 



Type: Collected on the coasts of Brazil, in fresh water, and de- 

 posited in the Berlin Museum. 



Distribution : An inhabitant of fresh water streams from the Rio 

 Grande, Texas, to the Rio Grande du Sul, Brazil; also found in 

 Ecuador. 



