ANNELID GENUS CAMBARINCOLA — HOFFMAN 301 



Figures 



Branchiophila group 



C. branchiophila Holt 23, 24 



C. shoshone, new species 2, 21, 22 



Fhiladelphica section 



Virginica group 



C. virginica, new species 35, 36 



Vitrea group 



C. vitrea EUis 25, 28, 29, 31 



C. Osceola, new species 26, 27, 30, 31 



Ingens group 



C ingens, new species 3, 4, 33, 34 



Philadelphica group 



C. philadelphica (Leidy) 39-42, 51-54, 67 



C. chirocephala Ellis 43-50, 57 



C. macrodonta Ellis 37, 38, 55, 56, 57 



C. nieyeri Goodnight 67, 68 



C. fallax, new species 58-60, 62, 63 



C. holostoma, new species 61, 64-66 



Heterognatha group 



C. heterognatha, new species 69-71, 74 



Demissa section 



Demissa group 



C. demissa, new species 72, 73 



Uncertain position 



C. floridana Goodnight 75, 76 



C. gracilis Robinson 77-79 



It must be emphasized that although clear-cut distinctions are made 

 in keys and diagnoses, there appear to be no major breaks anywhere 

 in the genus, either in a single structure or group of characters in 

 combination, that might conceivably threaten the homogeneity of 

 Camharincola as a generic entity. 



Key to Sections of the Genus Camharincola 



1 . Prostate and spermiducal glands of the male reproductive system histologically 



similar, both containing visible secretory granules 2 



Prostate and spermiducal glands dissimilar in histological appearance, cells 

 of the former lacking visible secretory granules. 



Philadelphica section (p. 320) 



2. Prostate gland terminating in a small clear bulb; all of the reproductive organs 



drastically reduced in size Demissa section (p. 365) 



Prostate gland not terminating in a clear bulbar structure; reproductive 

 organs all of normal size for the genus . . . Mesochore.\ section (p. 301) 



MESOCHOREA SECTION 



Six species of the genus are here referred to the section typified by 

 Camharincola mesochorea, in which the prostate gland is liistologicaUy 

 similar to the spermiducal gland, and the latter is normally provided 

 with large and distinct deferent lobes. These species are further 



