1911.] NATURAL SCIENCES OF PHILADELPHIA. 317 



Fig. 75. — Ventral aspect of one-half of a probably abnormal mandible, rep- 

 resented cut in two, X 24. 



Fig. 76. — Dorsal aspect of maxillae, X 24. 

 Plate XVIII. — Diopatra ornata, figs. 77-85. 



Fig. 77. — Anterior aspect of parapodium III, X 24. 



Fig. 78. — Anterior aspect of parapodium XV, with gill, X 24. 



Fig. 79. — Large compound crochet from 1st foot, X 360. 



Fig. 80. — A slender compound crochet from 3d foot, X 360. 



Fig. 81. — A semi-articulated subacicular seta from somite VI, X 360. 

 "Fig. 82. — A pectinate seta from C, X 360. 



Fig. 83. — End of a large simple guarded crochet from C, X 360. 



Fig. 84. — Ventral aspect of left half of mandible, X 24. 



Fig. 85. — Dorsal view of maxilla? of cotype (station 4,519), X 17. 

 Hyalinoecia juvenalis, figs. 86-95. 



Fig. 86. — Anterior aspect of parapodium of III, X 33. 



Fig. 87. — Posterior aspect of parapodium of V, X 33. 



Fig. 88. — Anterior aspect of parapodium XXV, with gill, X 33. 



Fig. 89.— Crochet from III, X 360. 



Fig. 90.— Crochet from XXV, X 250. 



Fig. 91. — Limbate seta from ventral fascicle of XXV, X 360. 



Fig. 92. — Pectinate seta fiom L, X 360. 



Fig. 93. — Left mandible of cotvpe from venter, X 33. 



Fig. 94.— Same of type, X 33. 



Fig. 95. — Maxillae of tvpe from the dorsum, somewhat crushed, X 33. 



Figs. 86, 87, 88 and 93* are from a cotype (station-4,431). 



Fig. 96. — Unworn tip of a hooded crochet of a young specimen of Hyalinoecia 

 tubicola stricta, seen in \ face, X 600. 



Fig. 97. — Same from L of a full-grown specimen, X 250. 

 Onuphis parva, figs. 98. 99. 



Fig. 98. — Cephalic end of mandible of a cotype (station 4,475), ventral 

 aspect, X 56. 



Fig. 99. — Dorsal aspect of the maxillae of the same, X 56. 



Fig. 100. — Dorsal view of anterior end of Onuphis nebulosa, X 9. 



Plate XIX. — Ninoe gemmea, figs. 101-109. 



Figs. 101-104.— Parapodia of V, XV, XXV and CXXV, respectively, 



profile outlines as seen from in front, X 33. 

 Fig. 105. — Limbate seta from XXV, a and b , respectively, profile and f-face 



views, X 98. 

 Fig. 106.— Crochet from XXV, X 98 ; a, tip of another, X 250. 

 Fig. 107.— End of crochet from C, X 440. 

 Figs. 108, 109. — Ventral view of mandibles and dorsal view of maxillae, 



respectively, of cotype (station 4,523), X 24. 

 Ninoe fusca, figs. 110-118. 



Fig. 110. — Prostomium and peristomium from above, X 9. 



Figs. 111-113. — Parapodia X, XXV and C, the first as seen from behind, 



the others from in front, X 82. 

 Fig. 114. — Supra-acicular limbate seta from X, X 250. 

 Fig. 115.— Same from C, X 250. 

 Fig. 116.— Crochet from C, X 250. 

 Fig. 117. — Dorsal view of mandibles, X 17. 

 Fig. 118. — Ventral view of maxillae, X 17. 

 Lumbrineris japonica index, figs. 119-127. 



Figs. 119-121. — Parapodia X, C and CXVII, outlines as seen from in front, 



from. cotype (station 4,406), X 33. 

 Fig. 122.— Dorsal limbate seta from X, X 98. 

 Fig. 123. — Very slender dorsal seta from L of specimen from station 4,405, 



X 98. 

 Fig. 124. — Compound crochet from XX, X 250; a, head of same, X 440. 

 Fig. 125.— Crochet of somite XLVI, X 250. 

 Fig. 126. — Mandibles from dorsum, X 9. 

 Fig. 127. — Maxillae from venter, X 9. All figures except 123 from cotvpe 



(station 4,406). 



