XX TABLE OF CONTENTS. 



Parasites and Commensals — Contiiuied. 



Coelenterata — Continued. ^*^^- 



67C 



676 



Family PerlsIphonldiE- 

 Lafoea fruticosa-- 



676 



^11____1__1__I__I_H_ u..„- - 676 



Unicellular organisms ; -^^^^^ --'■ °'" 



DInoflagellata ^'^'^ 



Corals 

 Porlfera- 



Suborder Adinida. 



67 



Family Proroceutridie 677 



Proroceutrum micans , 677 



Prorocentruni deutatum .^.^^---^- 677 



Prorocentrum rostratum ^-,^4tM;:.-j-y 677 



Proroceutrum, sp -r^---. — ^rV- 



677 



Cillata -.-- 677 



Order Trichostomata — r,— — -^--. 677 



Suborder Aspitotriclia-- -^ 677 



Family Uronemida; - - 'j"" 



Uronema echini 677 



Uronema digitiformis ,^^.t.>^j.^>,^fjnr-(«-?f-.-n'T>^ . 677 



, Hemlspelra asteriasi ^^^^^f^,--,^^,^,^^-^^^-^--, 678 



Suborder Spirotricha — , 678 



Section Peritricha 678 



Family Liebnophoridse 678 



Licbuopbora auerbacbii 678 



Family Urceolariidffi 678 



Trichodina synaptic 678 



Hemispeiropsis antedouis 678 



Cyclocb:Bta asterisei 678 



Cycloebreta ophiothricis 678 



Urceolaria ophioeomse . 678 



■ ,■. Family Vorticellidas , 678 



Vorticella amphiune 678 



Vorticella ophiocom» 678 



Vorticella, sp 678 



Rhabdostyla, sp 679 



Rhabdostyla arenaria 679 



Ubabdostyla, sp G79 



Cothumiopsis, sp 679 



Sporozoa . 679 



Order Gregarinida 679 



Suborder Monoeystidea 079 



Syncystis synaptic 679 



Syncystls millleri 679 



Syncystis holotburia; 679 



Litbocyatis schneideri 679 



Foraminifera 579 



Family Rotaliidie , 679 



Truucatulina lobatula 679 



Polytrema miniaceum 680 



Commensalism of tlie crinoids 687 



Avoidance of crinoids by fishes _ 687 



Dependonce of coniiitulids upon pnro, wpll-ai-rateri water 687 



