1887.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM, 619 



Male: 3, 4, 5, G, 7 pairs of legs crassate, rest sleuder; about the lirst 

 fifteeu pairs, excepting the first two, with the tarsal joiut armed on the 

 under side with an elongate patch of short tubercles extending from 

 the middle to claw, coxa not tuberculate; femur of fourth pair of legs 

 I^roduced into a knob-like appendage on the underside near the nnddle 

 and armed with three or four moderately large sharp tubercles; femur 

 of ninth pair with an inwarding projecting, cylindrical, tapering, basal 

 lobe, which is indistinctly tuberculate on the upper side. 



Length of body : $ IG to 18.5""", width 1.2toL5"""; 9 length 13 to 

 10"'"', width .9 to 1.2">"', antenme 2™'". 



This new species is more related to the cave form Crafipcdofioma 

 boJlmani, the male of which has the same x>eculiar knobs, but the 

 tuberculatiou is different. From Harger's description of C. glomeratum 

 this species seems to differ in having a dark median dorsal line, be- 

 sides being of a larger size. 



I have examined over a dozen specimens collected by Mr. Carl H. 

 Eigeumann. 



4. Paradesmus dasys, sp. nov. 



Diagnosis. — Yerj similar to Paradesmus gracilis (Koch), but the tibia 

 and tarsi of male tuberculate beneath; vertex pilose on each side of 

 sulcus, first and penultimate segments with two rows of seta^, rest with 

 one; copulation foot resembling that of gracilis. 



Type.— JJ. S. Nat. Museum. 



Habitat.— Baltimore, Md. 



This species is very closely related to Paradesmus gracilis, as shown by 

 the character of male genitalia, but is at once recognized by the charac- 

 ters given in the diagnosis. The following diiierences were also ob- 

 served, which, except the characters of male ge'nitalia, are not of much 

 importance : 



Dorsal plates somewhat wrinkled ; repugnatorial pore (as compared 

 with Saussure's figure of P. coarctatiis = P. gracilis) not placed so far 

 back nor the lateral cariuiTO so swollen ; the end of the sheath inclosing 

 the flagellum finely serrate as well as its branch ; the other lobe widely 

 three or four toothed ; length of body, S 15.5 to 20'"'", 9 17 to 22.5""". 



I have examined three males and a number of females collected by 

 Mr. Charles L. Edwards, of Johns Hopkins University. 



5. Polydesmus testi, sp. nov. 



Diagnosis. — Tuberculatiou as in P. moniliaris Koch,* but the lateral 

 carinie not finely serrated ; tubercles setai-tipped; male genitalia very 

 similar to Polydesmus inconstans Latzell.t 



Ty2)e. — U. S. Xat. Museum. 



* Polydesmus moniliaris Koch, Syst. d. Myr., 135, 1847 (Peuusylvania). = Polydesmus 

 sermtus Wood, Trans. Amer. Philos. Soc, 215, 1805 (Pennsylvania). 

 \ Polydcfiinun ivconsfans Latze], Les Myr. Nonnandie, 21, 188:5. 



