ISOPODS OF NORTH AMERICA. 



175 



i^GA WEBBII (Guerin). 



Pterelas wehhii Guerin, Mag. Zool., CI. VII, 1886, pi. xx, figs. la-e. — ]\Iii.ne 



•Edwards, Hist. Nat. Crust., Ill, 1840, p. 245. 

 yEga wehhii Schkedte and Meinert, Naturh. Tidssk. (3), XII, 1879-80, pp. 



347-348, pi. X, 'figs. 1-4. 

 I^Ega .ivebhii Harger, Bull. J\Ius. Comp. Zool., Harvard College, 1883, XI, No. 



4, p. 95. — Richardson, American Naturalist, XXXTV, 1900, p. 218; Proc. 



U. S. Nat. Mus., XXIII, 1901, p. 522. 



Localities. — Off Fernandina, Florida; latitude 31° 57' north, lonoi- 

 tudo 78° 18' 35" west (Harger); also Cape of Good Hope; Portuoal. 

 I)e2)th.—^ZZ fathoms. 



Body oblong-ovate, twice as long as wide, 8 nnn. : Ki nun. 

 Head twice as wide as long, '-1 mm. : 4 nnn. Anterior margin widely 



Fig. 156.— ^Ega webbii (After 

 Schkedte and Meinekt). a, 

 Frontal margin with both 

 pairs of antenna and frontal 

 LAMINA, h, Adult male. (En- 

 larged.) 



Fk;. l-')7.— .EGA WEBBII. a, Maxilliped. x61| 

 b. Leg of the second pair, x 15j. 



rounded aiul produced in a small median point, which does not arch 

 over the antennae to meet the frontal lamina on the other side. Eyes 

 large, oval, composite, not contiguous, and separated in front by a 

 distance equal to the width of one eye. The tirst pair of antennae 

 have the two basal articles large and dilated, the tirst one being a little 

 longer and wider than the second one; the second article has the outer 

 distal end produced in a process which extends about half the length 

 of the third article; the third article is about as long and half as wide 

 as the basal article. The tlagellum is composed of eight ai'ticles. The 

 tirst antenuie reach the end of the peduncle of the second antennae, but 

 do not extend to the posterior margin of the head. The second pair 

 of antenna^ have the lirst three articles a))out eciual in length; the 

 fourth article is a little more than twice. as long as the third; the fifth 

 is just a little longer than the fourth. The tlagellum is composed of 



