A treatise on zoology . Kon.), Jurassic and Lower Ot-taceous; columnals only.(Jalnmorrinnx, A. Agassi/, (1890,-92), 392-782 fathoms, ()s Is. and Panama (Kig. CXIII.). Patina tend to be fused ; Hil laterally \inited by ligament ;r. audi. post. IIH slightly longer than the others. IHr, united to H by THE CRINOIDEA 193 Amb^ muscular aiticulatiou, and to IBig by incomplete syzygy. Arms hetero-tomous; eiicli gives off 5 unbranching rami nearly as stout as the mainstem, 2 to riL,lit and 3to lelt, or vice, vcrt^a) thefirst main-axil is the10th or 11th brachial,succeeding branches areat
A treatise on zoology . Kon.), Jurassic and Lower Ot-taceous; columnals only.(Jalnmorrinnx, A. Agassi/, (1890,-92), 392-782 fathoms, ()s Is. and Panama (Kig. CXIII.). Patina tend to be fused ; Hil laterally \inited by ligament ;r. audi. post. IIH slightly longer than the others. IHr, united to H by THE CRINOIDEA 193 Amb^ muscular aiticulatiou, and to IBig by incomplete syzygy. Arms hetero-tomous; eiicli gives off 5 unbranching rami nearly as stout as the mainstem, 2 to riL,lit and 3to lelt, or vice, vcrt^a) thefirst main-axil is the10th or 11th brachial,succeeding branches areat much greater inter-vals ; i^innules occurbelow I Ax, on IBr^^ ^^ gor I Br. « .- o thosebeing as a rule epizy-gals. There are dis-tinct Amb and adAmb,both in arms and teg-men. The proximalregion of the arms isfixed by the tegmen,so that the grooves ofthe proximal pinnulesrise from the tegminalfood - groove (). Small iBrrest on shoulders of RR. - ccax p2 -» pi/ P3 Fig. of C«Zamoc7T?ms Dioj/iw^ac, with the arms and pin-nules cut oft down to the level at which they become fixed inand 11-iPTTrp intn im-npr the calyx. Amh, ambulacrals or covering-plates; As, anus;dim meij,*; iulu impei- ^^.^xial canal of arm ; cc, coeliac canal of arm ; y^/, food-grooveforate iAmb, and these of anterior arm where it joins the tegminal food-groove ; IBr,i-^QQ- infr. •nnrifpvnnc piimibrach; xAfnib, interambulacrals, both perforate and im-pdSt> lUlO poriierous perfd-ate ; pi, first or proximal pinnule ; 2*2, second ; f^, thirdiAmb • 5 imperforate pinnule ; stc, subtentacular canal of anterior arm ; ;*, water-1 . ? ^ , 1 • . T 1 pores. (After Agassiz), x 2%. plates at the mterradial angles of the peristome are taken by Agassiz for 0 (Fig. CXIV.).Stem long, smooth; root encrusting (Fig. CXIII. 2). Family Pinnata in which the patina consists of 5 BB
Size: 1554px × 1608px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishe, booksubjectzoology
