﻿312 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



(1945). In E. armatum subsp. delicatum Gisin (1945), one pair of 

 setae in the anterior row is absent. The number of setae in the 

 posterior row agrees with that given by lonesco (1935) for the genus, 

 and for E. armatum Stach by Gisin (1945). 



Tergite VIII (fig. 86, a): In the anterior row, only the last two 

 setae in the pleural region are present, 35 and 34ju long. The other 

 setae present I call posterior only because of their length; setae 1 

 are slightly posterior of the middle, 29/x apart, 29/i long; setae 2 are 

 23/i diagonally from setae 1, near the glandular opening, 22^ long; 

 near setae 2 are three microchaetae. Near the posterior margin in 

 the middle is a single seta 9/i long. Formula: Anterior row 2-2; 

 posterior row 2-1-2+3-3 microchaetae. 



The number of setae does not agree with that given by lonesco 

 (1935) for the genus. The same number of setae is given by Gisin 

 (1945) and Tuxen (1949) for E. armatum Stach, but the size of the 

 setae differs greatly. 



Tergite and pleurite IX: Near the posterior margin, setae 1 are 

 22/1 apart, and are ll^u long; setae 2 are 9/i from setae 1, and are 9/i 

 long; setae 3 are 8m long, in the posterior lateral corner. Formula: 

 3-3 + 1-1 on the pleurite at the posterior tergal corner, 32jLt long. 

 (See comment for tergite XI.) 



Tergite and pleurite X: The row is nearer the margin than on 

 tergite IX; setae 1 are 14yu apart, and are S/x long; setae 2 are 9/x from 

 setae 1, and are 6/i long; setae 3 are 5/x long, in the posterior lateral 

 corner. Formula: 3-3 + 1-1 on pleurite, 8n long. (See comment for 

 tergite XI.) 



Tergite and pleurite XI: The row is on the margin; setae 1 are 8^ 

 apart, 6/i long; setae 2 are 19/x from setae 1, and are 4/i long; setae 

 3 are 9/i long. Formula: 3-3 + 1-1 on pleurite, 26/t long. 



The number of setae on tergites and pleurites IX-XI is the same 

 as that given for the genus by lonesco (1935), and ior E. armatum 

 Stach by Gisin (1945) and Tuxen (1949). 



Tergite XII: Near the middle, a pair of setae 12/: apart, 31/i long; 

 near the anterior lateral corners, setae 28/i long; two setae posterior 

 to the latter, 8n and 6/i long; a microchaeta at the posterior tip. 

 Formula: 4-4+1 microchaeta. 



The number of setae differs from that given by lonesco (1935) for 

 the genus. It agrees with E. armatum Stach as given by Gisin (1945). 



Sternites: Here again, the setae are on the most heavily chitinized 

 portion, and I shall refer to that part only in the description. The 

 number of setae on sternites I-XI agrees with that given for the 

 genus by lonesco (1935), and for E. armatum Stach by Gisin (1945) 

 and Tuxen (1949). 



