124 CONETi\TS. 



Contents. 



Placosoma paradiclyum, n. g., n. sp 2 



Spiculation H 



Oliservalions on the Euplectellidœ generally 19 



Leucopsacidae 29 



Leucipscicus Ij o4 



Leucnpsacua orthodocus Ij 154 



Spiculation ,"6 



Notes on the soft parts and the larva 40 



Leucopsacus scoliodocus Ij 46 



Spiculation 48 



C'liavnopledella Ij 58 



C'liaunopk'ctella cavanom Ij ,. ... 53 



Spiculation 59 



C'huunopteclella sjjiuifera, n. sp 71 



Spiculation 72 



Caulophacidae 78 



Caulophacus F. E. ScH 85 



Caidophacus lolifoltiun, n. sp 87 



Spiculation 90 



SijmpageUa O. ScHM 9(') 



Sympcujella anoniala, n. sp 97 



Spiculation 108 



Diagnoses of the families, genera and species treated of in this Contribution 108 



List of literature referred to in this Contribution 122 



Postscript 1 115 



Postscript II 112 



