A treatise on zoology . Cucumariidae resemble the Ilolothuriidae in the possessionof well-devel()i)ed respiratory trees, they differ markedly fiom all thepreceding families in the Hliaj)e of the tentacles and the presence ofretractor muscles. Family 5. Molpadiiuae. Neither tube-feet nor paj)illae. Theposterior region generally tajiering. Moutli and anus terminal. (Jenerallyfifteen 8imi)le or digitate tentacles. Tentacle aujpullae well ring of five radial and five interradial i)ieces. Single etone-canal with an internal ma(lrei)()rite. Longitudinal muscle bands moreor less
A treatise on zoology . Cucumariidae resemble the Ilolothuriidae in the possessionof well-devel()i)ed respiratory trees, they differ markedly fiom all thepreceding families in the Hliaj)e of the tentacles and the presence ofretractor muscles. Family 5. Molpadiiuae. Neither tube-feet nor paj)illae. Theposterior region generally tajiering. Moutli and anus terminal. (Jenerallyfifteen 8imi)le or digitate tentacles. Tentacle aujpullae well ring of five radial and five interradial i)ieces. Single etone-canal with an internal ma(lrei)()rite. Longitudinal muscle bands moreor less j)aire(l. IJespiratoay tries present; Cuvierian organs tubes in right and left tufts, (teneta A. Willi well-developed 77//; JIOLOTIIURIOinEA 233 retractor inusckS; tentacles digitate—il/o/^^rtf^iV?, Ciivicr. B. Retractorsal)seiit or nidiiiuiitary — Eupyrrins, Liitkcn ; Jfaplodadyla, GriiLe ;C*a»6(?/»a, Stimpsoii ; 7Voc/ios<07na, Dan. and Kor. ; Anhjroderma, Dan. andKor. (Fig. I. 10). mrt ???. CL- Fig. V. 1.—Left side view of Sunapta digitata, Mont. 2.—The same opened up to the right of the median dorsal line. 3.—Diagram of the water-vascular system of 6. dif/ituta illustrating the Paractiuopod plan. 4.—Ciliated urns; and 5.—Transverse section through the radius and otocysts of 5. digitata. (After Cuenot.) 6.—Anchor and anchor-i)late of S. digitata. 7.—Wheel of Mjriotrochus Einlcii, Steenstrup. (After Danielssen and Koren.) a, anus ; an, anchor ; , anchor-plate ; , body-wall; , circular canal ; , coelomicepithelium ; cm, circular muscles ; , ciliated urn ; , dorsal mesentery ; , epineuralsinus ; , genital pore ; i, intestine ; , left gonad ; m, mouth ; men, mesentery ; 7i, nerve ;, otocyst; oe, oesojjhagus ; , otolith ; , pseudhaemal canal; r, rectum ; , right gonad ;, right mesenterial fold ; , radial nerve ; , stone-canal; st, stomach ; t, tentacle ; ,tentacle canal; , median ven
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishe, booksubjectzoology
