LIST OF FIGURES. 189 



FIGURE VOL. II. PAOK 



316. Waldheimia floridana, interior of valve, \ ...... 76 



317. Terebratulina Cailleti, f (Davidson) 77 



318. Terebratula c-aput-serpentis, one valve removed, showing arms, ^ & 



(Davidson) 77 



319. Platydia anomioides, | (Davidson) 77 



320. Platydia anomioides, one valve removed, showing arms, -J (Davidson) . 77 



321. Crania Pourtalesii, *f (Dall) 77 



322. Discina atlantica, f (Verrill) 77 



Bryozoa. 



323. Crisia denticulata, f 78 



323 a. Crisia denticulata, magnified (Smitt) 78 



324. Diastopora repens, ^ .......... 78 



324 a. Diastopora repens, magnified (Smitt) . . . . . . .78 



325. Farciminaria delicatissima, \ (Busk) 78 



325 a. Farciminaria delicatissima, magnified (Busk) ..... 78 



326. Membranipora canariensis, J ^ ........ 79 



327. Cellularia cervicornis, f 79 



327 a. Cellularia cervicornis, magnified (Smitt) ...... 79 



328. Caberea retiformis, magnified (Smitt) ....... 80 



329. Vincularia abyssicola, y .......... 80 



330. Escharipora stellata, f 80 



330 a. Escharipora stellata, magnified (Smitt) ...... 80 



331. Tessadroma boreale, | .......... 81 



331 a. Tessadroma boreale, magnified (Smitt) 81 



332. Hippothoa biaperta, 1 .......... 81 



332 a. Hippothoa biaperta, greatly magnified (Smitt) ..... 81 



333. Cellepora margaritacea, 82 



333 a. Cellepora margaritacea, magnified (Smitt) ...... 82 



334. Biflustra macrodon, f 82 



335. Porina subsulcata, f .......... 82 



336. Retepora reticulata, { 82 



337. Heteropora, | . . . . .83 



XIX. CHARACTERISTIC DEEP-SEA TYPES. ECHINODERMS. (Figs. 338^421 a.) 



Holothurians. 



338. Psolus tuberculosus, f (The'el) 85 



339. Echinocucumis typica, f (The'el) 85 



340. Stichopus natans, (Koren & Danielssen) 85 



341. Trochostoma arcticum, | (Koren & Danielssen) . . . . .86 



342. Psychropotes longicauda, \ (Theel) . . . . . . .86 



343. Deima Blakei, (The'el) 86 



344. Benthodytes gigantea, f (U. S..F. C.) 87 



345. Euphronides coruuta, f (U. S. F. C.) 87 



346. Pselopatides confundens, f (The'el) 88 



347. Ankyroderma affine, | (Koren & Danielssen) ..... 88 



Sea- Urchins. 



348. Dorocidaris papillata, | 89 



349. Dorocidaris Blakei, f 90 



350. Porocidaris Sharreri, f 90, 91 



