1911.] NATURAL SCIENCES OF PHILADELPHIA. 317 



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

 resented cut in two, X 24. 



Fig. 76. — Dorsal aspect of ma.xilla?, X 24. 

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



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



P'ig. 78. — Anterior aspect of para])odium XS", with gill, X 24. 



Fig. 79. — Large compound crocliet from 1st foot, X 3G0. 



Fig. 80. — A slender com]jound crocliet from 3d foot, X 360. 



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



Fig. 82. — A pectinate seta from C, X 3G0. 



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 maxilUe of cotype (station 4,519), X 17. 

 Hyalinaecia iuvenalift, 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 2.50. 



Fig. 91. — Limbate seta from ^•entral fascicle of XXV, X 360. 



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



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



Fig. 94. — Same of type, X 33. " 



Fig. 95. — Maxillae of type 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 2.50. 

 Onuphis parva, figs. 98, 99. 



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

 aspect, X 56. 



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



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



Plate XIX. — Ninoii 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 6, respectively, profile and J-face 



views, X 98. 

 Fig. 106.— Crochet from XXV, X 98; a, tip of another, X 2.50. 

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

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



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 2,50. 

 Fig. 115. — Same from C, X 250. 

 Fig. 116.— Crochet from C, X 2.50. 

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

 Fig. 118. — Ventral view of maxilla-, X 17. 

 lAimbrineris iaponica index, figs. 119-127. 



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



from cotvpe (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 crocliet 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. — Maxilla* from venter, X 9. .\11 figures except 123 from cotvpe 



(station 4,406). 



