Plate 50. 



Females of Clavella recta and Clavellopsis producta, and female and male of Clavellisa 



spinosa. 



Fig. 183, side view, C. recta. Fig. 184, antennae and mouth parts. Fig. 185, side 

 view, C. producta. Fig. 186, antennae and mouth parts. Fig. 187, cell filament and 

 egg of Clavellisa cordata. Fig. 188, antennae and mouth parts of G. spinosa. Fig. 189, 

 side view of male. 



Plate 51. 



Female and male of Clavellodes rugosa. 



Fig. 190, ventral view of cephalothorax and dorsal view of trunk. Fig. 191, dorsal 

 view of head. Fig. 192, ventral view. Fig. 193, first antenna. Fig. 194, second 



724 PJiOCEEDINGS OF THE NATIONAL MUSEUM. vol. 4' 



Plate 45. 



Female and male of Clavella perfida, and female of C. tumida. 



Fig. 140, side view, C. perfida, female. Fig. 141, ventral view, showing genital i 

 process and maxillary glands. Fig. 142, ventral view of antennae and mouth parts. 

 Fig. 143, side view of male. Fig. 144, side view, C. tumida. Fig. 145, \entral view of 

 antennae and mouth parts. Fig. 146, first maxilla. Fig. 147, maxilliped of male. 



Plate 46. 



Male of Clavella tumida, female and male of C. canaliculata, and female of C. insolita. 



Fig. 148, side view, male C. tumida. Fig. 149, side view, female C. canaliculata. 

 Fig. 150, ventral view of antennae and mouth parts. Fig. 151, side view of male. 

 Fig. 152, ventral view of C. insolita. Fig. 153, antennae and mouth parts, an^ and 

 an^, first and second antennae; mx^, first maxilla; mxp, maxilliped. 



Plate 47. 



Female of Clavella levis, and female and male of Clavella pinguis. 



Fig. 154, side view, C. levis. Fig. 155, antennae and mouth parts. Fig. 156, side 

 view of adult female of C. pinguis. Fig. 157, side view of young female. Fig. 158, 

 antennae and mouth parts. Fig. 159, second maxillae showing line of separation. 

 Fig. 160, side view of male. Fig. 161, antennae and first maxilla, enlarged. 



Plate 48. 

 Female of Clavella squamigera, and female and male of Clavella uncinata. 



Fig. 162, side view, C. squamigera. Fig. 163, ventral view, showing scales around 

 second maxillae. Fig. 164, antennae and mouth parts. Fig. 165, second antennae. 

 Fig. 166, maxilliped. Fig. 167, first antenna and first maxilla of female C. uncinata. 

 Fig. 168, maxilliped. Fig. 169, section through the center of the bulla. Fig. 170, 

 side view of male. Fig. 171, first and second antennae of male. Fig. 172, first maxilla. 

 Fig. 173, maxilliped. 



Plate 49. 



Female of Clavella uncinata, female and male of C. irina, and female of Clavellopsis 



robusta. 



Fig. 174, antennae and mouth parts of C. uncinata. Fig. 175, mandible. Fig. 176, 

 claw of maxilliped (last two figures by R. Rathbun). Fig. 177, side view of female 

 of C. irina. Fig. 178, antennae and mouth parts. Fig. 179, ventral view of posterior 

 trunk, showing genital process and peculiar fleur-de-lis. Fig. 180, side view of male. 

 Fig. 181, second antenna. Fig. 182, dorsal -\dew of C. robusta, showing short posterior 



