THE SKKTULARID^:. 123 



ABIETINARIA TURGIDA iClark). 



(I 'lair XXX VI I, li-s. [, 2.) 



'I'hn, iirm Inri/i'/'i ( 'I.\HK, Alaskan Hydniids. IX7H. p. L'L'll. 



Tliniiiriil Ilinjiilil K.IBCHENPAUER, Nordisclll' I iattlllljflMl, 1SS4, p. L'l. 



Tlininriii liiri/iiln . XVrrixi;, Hydruids fniin Alaska ami Panel Smiinl. IS'iit, p. 741. 

 '/'liiiiin-iii . liiri/liln NCTTIM., Hydniids of tin- Harriinaii Kxprdition, I'.Mll, p. ISH. 



Ti'i>i'iliiixiiiin-. Colony attaining ti height of about s indies. Stein rather stout, glazed. 

 divided into sliort stout regular Intel-nodes by oblique nodes, cadi intcrnode bearing a pair of 

 suboppositc hydrothecae. Main branches irregularly alternate and few in number, originating 

 from distal part of stem, constricted near point of attachment, and resembling the main stem in 

 their proximal portion, while distally they give origin to alternate liranddets. one being borne 

 on each internode of the branch. Brandies dichotomously dividing, with very long internodes 

 divided by oblique nodes. Hydrother-e subopposite, tubular, almost wholly immersed, distal 

 end but slightly constricted, terminating in a round margin pointing obliquely outward and 

 upward; the top of one hydrotheea usually reaching just to the base of the next one above. 

 Open-iilum of a .single flap attached to the adcauline side of margin. 



(iniinxnni, . -Gonangia large, oblong-orate, attached to the base- i if the branchlets so as to 

 form a densely set double row on the front of the brandies. There is a short collar, round 

 terminal aperture, and operculum. Sides of gonangia ornamented with stout longitudinal ridges, 

 three to five in number. 



Distribution. Abundant throughout the Alaskan coasts and Aleutian Islands and Bering Sea. 

 All of the specimens known were collected either by Or. Hall and party (Clark), or the Harriman 

 Alaska Expedition (Nutting). 



This species is most like .1. y/V/i///A / (Clark), but the hydrotheea' are much smaller and 

 more crowded than in the latter species, and the gonangia are quite different. 

 . In the collection of the V . S. National Museum. 



ABIETINARIA GIGANTEA ( Clark). 



(Plat,- XX XVII. tins. :;-.).) 



Tliniiiriil. ijii/iintrii CI.AKK, Alaskan Hydroids, 1S7H, p. L'lill. 



Thuiaria gigantea KIKCMKXI'.U'KH, Nordische Gattungen, lss-1, p. i'l. 



Tliiiiiirin ijiijuiilifi NCTTIXI., Ilyilmiils fnnii Alaska ami Punet Smitid, ISitlt, p. 741. 



Tliiiiitrin i/ii/iiiihn XrTTiNti, Hydruids nf tin- Harriman F.xprditimi, Hull, p. isti. 



Tri'jilii'xiHiK Colony attaining a height of about s inches in the largest specimen examined. 

 Stem undivided, with very distant and irregularly plaeed nodes and two rows of hydro! hccse 

 along its entire length. Brandies irregularly alternate, constricted at their origins, occasionally 

 bearing one or more branchlets, with no nodes or one ur two very distant ones, and bearing 

 dose-set rows of hydrotheea' on opposite sides. Hydrotheea' very large and stout, immersed 

 almost to their margins, and with a distinct bare space on the intcrnode between the to]) of one 

 and the bottom of the next one above: margins elliptical, the horizontal axes being the longer, and 

 sinuous on lateral aspect, giving the appearance of a medium blunt tooth above. Operculum 

 with a single adcauline flap. 



(iniioitniii,-. (tonangia comparatively small, borne in dense double rows along Ihe upper 

 sides of the branches, oblong-ovate, with large terminal round aperture and without collar or 

 longitudinal ridges. 



I)!xfi-!liiit!iin. Alaskan shores and Aleutian Islands, Bering Sea. I Iagmei>tcr Island, 

 Akutan Pass, Kyska Harbor (Clark); ( )iva and Kadiak. Alaska (Nutting): Belkotlsky (Dall); 

 Ml>,,t,-<>xx Station -_'Si;4. lat. N. 4s -Ji''. long. W. \^2 51', 4s falhom>: Station :Ui-k lat. X. Is 

 14', long. \V. 1 _':-: L'II' 40". 4<> fathoms; Station M.HH. lat. N. :>4 li''. long. W. H:ii' 4i'\ 36 

 fathoms; Station :!.V>7. lat. N. ."-7 O4'. long. W. 17o -_M'. _'! fal horns. 



TIJI><-. In the collection of the V . S. National Museum. 



