150 M. O. A. L. MORCh's review of the VERMETIDiE. [April 9« 



1. Stephopoma roseum, Quoy & Gaim. (PI. XXV. f. U). 

 " T. minima, spirali porrecta, cylindrica, rugosa et rosea. 

 "Long. 6-8 lin. 



" Opercule rond, brun, multispire, reconvert d'une grande quan- 

 tity de soies cornees, divergentes et multifides." 



1833. Fermetus roseus, L' Astrolabe, ii. p. 300. t. 17. f. 20-24. 

 Siliquaria rosea, Gray, Figures, iv. p. 83. t. .^)6. f. 3; Guide, 



p. 128. 

 Stephopoma roseum, Morch, J. de Conch, riii. p. 42. 

 " La riviere Tamise (qui est saline) a la Nouvelle Zelande, par 

 d'assez grandes profondeurs." — Quoy et Gaimard. 



2. Stephopoma tricuspe, Morch (PI. XXV. f. 1). 



T. agglomerata tenuiuscula, ferruginea hie illic albescens, laxe 

 spirata, hngitudinaliter obsoletissime subtiliter-lirulata ; stri(B 

 et rugce incrementi irregulares leviter arcuatce et reflexce ; anfr. 

 primi 2-3 conjuncti helici- vel planar bif or mes, sub lente minu- 

 tissime arcuatim granulosi ; apertura circularis vel reni/ormi- 

 ovalis, faucibus scspe badiis. 



Diam. aperturae 4 va. (circ). 



Operculum arete spiratum, superne setts tricuspidihus hreviusculis 

 confer tissimis instructum ; in feme planum, badiuni, concentrice 

 sulcatum et striatum; disculo centrali subimmerso, fossula de- 

 clivi circumdato ; verruca centrali punctiformi ; limbiis Jlaves- 

 cens, latus, nitidus, margine teiwi, reflexo. 



SetcB triramosce, stipite brevi crassiusculo supra basin contracto, 

 cingulis 5-6 spiniferis ; ramus medianus erectus, gracilis, longis- 

 simus, nudus, stipite quadrvplo longior; ramus sinister dimidium 

 longitudinis vix attingens, extrorsum quadrispinosus, spince in- 

 fimce geniincB ; ramus dexter ojjpositus brevissimus, vertice tri- 

 spinoso (fig. 2). 



Testa natalis nautiliformis (sed asymmetrica) nitida, pallide iri- 

 descens, alba vel pallide cyanea, arcuatim punctato-granulosa ; 

 granulce sub microscopio inspectce, ocellatce {centro pellucido 

 anmdo obscuro circumdato). Spira subulata, obliqua, vix 

 prominens, ferruginea ; sutura impressa, canaliculata ; umbi- 

 lico piano, apertura obliqua subhexagonalis ; peristoma superne 

 leviter biflexum ; anfr. ultimus carina lata convexiuscula. 

 Strice incrementi profundce, unde peripheria crenulata. Invent 

 circiter x. pullos in specimine desiccato. 



Diam. maj. 1 m. 



Australia ; massa agglomerata (coll. Cuming). 



I cannot see any trace of the specimens having been affixed to 

 foreign objects. It is not unlike Pyxipoma lacteum ; but all the 

 specimens are agglutinated to each other. 



3. Stephopoma senticosum, Morch (PI. XXV. fig. 2 & 14). 

 T. alba, crassa, aperturam versus tenuis, contorta vel interdum 



