^'o. 478] 



OHIO NAIDIDM 



S. phyladelphiana, S. scoti'ca Czeriiiavskv, Bull. Soc. Imp. Not. Mom>ii, 

 vol. 55, no. 4. p. 309, 18S0. 



Prostomium developed into a lon^ tentacular process. Kves 

 usually present. Distal teeth of ventral scijc une(nial. Dorsal 

 setcT capilliforin with 1 long and J to 2 sliort in each hundlc. .Ml 

 long setcT of each bundle approximately of the sanu^ length. ( 'litcl- 

 lum in sexually mature forms on segment (>. Male pores on (Ith 

 segment. Sperm duct in 5th, spermathecw in 5th segment. I>ength 

 10 to 15 nuu. Number of segments about 25. 



Europe, North America (Pennsylvania, Ohio, Illinois). 



present be referred to this species. Micluiclsen notes the Icn-th 



of those found at Cedar Point was always from 4 to 5 mm. The 

 teeth of the ventral seta? are also considerai)ly shorter and more 

 obtuse than illustrated in the figures of Vedjovsky ('S4), Taiiber, 

 and others. Furthermore, the length of the tentacular jiroc- 



long capilliform set:r wliil(' Aliillcr ^ 1 77 I ■ note- ihr length of the 

 tentacular process as »■( |Mi\ nlcnt to ten >cniiicm^ ot' the Ix.dy. The 

 synonymy of N. A/r//.v//v.v ,\ in ;i mufu^nl condition. ;ni.l it i-^ po.M- 

 ble that careful stu.ly will establish one ..r nu.re new s,H-eir^ in the 



^ The imperteet . leM-ription-. giNen b> Lei,h •.-.L'b to li.e .peeies 

 described l)y him a. N. i>ah,/,>sa and N. uill nut per- 



