A treatise on zoology . Fk;. CXVllI. AUleci-itius , with twocirri partly prcsfrvnd and armsiinperfoct. (Proiii .\. AkiissIz, afterP. II. Carptiitur.) x 2( an Fiii. CXIA. Thintmatorritius irnoratus, from the analside. «((, anal appouda^e ; (/(, ititeramhida-crals; at, anal lube ; /). basal ; /m, seeondbrachial ; cd, centrodorsal; i, internidial ; r,radial. (After V. II. Carpenter.) x ,\ pu-t); IlHmo(/tuii(i, iioven), Lower Jurassic to Recent, almost all seas,littoral to 800 fathoms. Divisible into 8 groups, differing in arm-structure and distribution. Family G. Thaumatocuin
A treatise on zoology . Fk;. CXVllI. AUleci-itius , with twocirri partly prcsfrvnd and armsiinperfoct. (Proiii .\. AkiissIz, afterP. II. Carptiitur.) x 2( an Fiii. CXIA. Thintmatorritius irnoratus, from the analside. «((, anal appouda^e ; (/(, ititeramhida-crals; at, anal lube ; /). basal ; /m, seeondbrachial ; cd, centrodorsal; i, internidial ; r,radial. (After V. II. Carpenter.) x ,\ pu-t); IlHmo(/tuii(i, iioven), Lower Jurassic to Recent, almost all seas,littoral to 800 fathoms. Divisible into 8 groups, differing in arm-structure and distribution. Family G. Thaumatocuinidae. Pinnatawith cup of 5 1>P> forming a ch)sed ring, and f) RR separated by r> intor-radials resting on 13B ; Br not incorporated iu cu]) ; arms do not fork;T) 0, separated from cui»-plates by relatively large iAmb; no Amb; noBucculi ; anal tube in ])ost. IK; post, interradial ft)llowed by 5 platesin vertical scries forming a free api)endage (I^ig. CXIX.). Genus—Thau7mitocnnu,% P. II. Carp. (1883), a uni([ue individual, probably young,South Sea, 1800 fathoms. Differs greatly from all other Pinnata ; theHtructure of the cup is as in Xt-nocrinus (p. IG5),
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishe, booksubjectzoology
