318 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



Planaria, gesserensis, 162. 



linearis, 153. 



viridis, 162. 

 Planktonemertes, 108, 304. 



agassizii, 2, 89, 90, 91, 94, 108, 304. 

 Folia, 154. 

 Stichostemma, 94. 



eilhardi, 70. 



graecense, 70. 

 Taeniosoma, 97, 154. 



hemprichi, 57. 



melanogrammum, 46. 



mexicana, 89, 91, 92, 97, 157. 



princeps, 87, 92, 97, 156. 



punnetti, 13, 89, 92, 97, 158. 



uuilineatum, 46. 

 Tetrastemma, 106, 287. 



aberrans, 55, 87, 94, 108, 293. 



albidum, 90, 94, 107, 294. 



bicolor. 42, 76, 87, 94, 106, 293. 



bilineatum, 10, 88, 94, 107, 296. 



caecum, 6, 55, 62, 66, 69, 76, 87, 94, 108, 302. 



cruciatum, 294. 



dorsale (Oerstedia), 71, 76, 77, 88, 94, 107. 299. 



kefersteiiii, 76, 303. 



melanocephalum, 76. 



nigrifrons, 42, 76, 88, 94, 107, 289. 



quadrilineatum, 45, 46, 88, 94. 107, 297. 



reticulatum (Oerstedia), 45, 88, 94, 107, 300. 



siguifer, 42, 54, 88, 94, 107, 287. 



vermiculus, 72, 76, 293. 

 Zygeupolia, 97, 160. 



littoralis, 18, 51, 76, 88, 89, 92, 97, 160. 

 Zygonemertes, 103, 212. 



albida, 87, 92, 103, 216. 



thalassina, 49, 87, 92, 103, 213. 



virescens, 72, 76, 90, 92, 103, 214. 



