THE PLUMULARID.E. 103 



AGLAOPHENIA RAMULOSA Kirchenpauer. 

 (Plate XXIII, fig. 1.) 



Af/laojihenia ramulosa KIRCHENPAUER, Ueber die Hydroideufamilie Plunmlarid;i', 1872, Ft. 1, p. 41, pi. I, fig. 18. 

 ramulosa FEWKKS, Bull. Mus. Comp. Zool., 1881, VIII, No. 7, p. 127. 

 ritmiilosa BALE, Catalogue Australian Hydroid Zoophytes, 1884, p. 171, pi. xvm, fig. 11. 



Trophosome. Colony attaining a height of li inches, branching in a pinnate manner ; branches 

 scattered, short, divergent; hydrocladia divided into rather short interuodes, each with a septal 

 ridge opposite the intrathecal ridge. Hydrothecie approximated, short, margin not flaring, two 

 anterior teeth much longer than the others, of which there are two on each side. There is a thick, 

 strong anterior intrathecal ridge; supracalyciue uematophores long, tubular, reaching above the 

 hydrothecal margin; mesial nematophore very loug, tubular, curving upward, separated but 

 slightly from the front of the hydrotheca, and extending a considerable distance above its top. 



Gonosome. Not known. 



Distribution. Port Lincoln, Australia (Kircheupauer); Barbados, 76 and 91 fathoms; Mont- 

 serrat, 88 fathoms (Fewkes). 



The above description is taken partly from Kirchenpauer, partly from Bale, and partly from 

 the figures given by these authors. 1 have not seen the species, and it is doubtful whether it 

 belongs to this genus or not. In the absence of the gonosome, however, it is here retained in 

 Atjlaophenia. 



AGLAOPHENIA OCTOCARPA, new species. 

 (Plate XXIII, figs. 2-5.) 



Trophosome. Colony unbranched, attaining a height of 2 inches; stem not fascicled, divided 

 into short iuternodes, each of which bears a hydrocladium on its antero-lateral surface; hydro- 

 cladia closely approximated, directed laterally, divided into short internodes with septal ridges 

 back of the intrathecal ridge and immediately below the supracalycine nematophores. Hydro- 

 theca small (only a little more than half as large as A. strutlrionides), obconical, margin expanded, 

 terminal one-third of the hydrotheca free from the inter/node; marginal teeth eleven, uneven, the 

 anterior one long and retrorse, the next long and projected forward, the remainder smaller, vary- 

 ing greatly in shape, being either rounded or sharp pointed ; supracalycine uematophores small, 

 reaching to the level of the top of the hydrotheca; mesial uecaatophore prominent, adnate to front 

 of hydrotheca for about three-fourths the height of the latter, and then pointing forward and 

 upward, the distal end being distant from the hydrotheca, although it hardly reaches the level of 

 its top; distal end not expanded; three cauliue uematophores to each iuternode of the stem. 



Gonosome. Corbula; rattier small and stout, composed of about eight pairs of broad leaves, 

 each of which bears a row of nematophores along its distal edge and a short process at its base. 

 There is a single hydrotheca between the corbula and the stem. 



Distribution. Cape St. Lucas, Gulf of California; John Xantus. 



This species looks like a miniature A. arborea, from which it differs in the direction of the hydro- 

 cladia, size of hydrotheca^ and especially in the gouosorue. 



Type slides. Cat. No. 18662, U.S.N.M.; Cat. No. 15369, Mus. State Univ. Iowa; also in the 

 collection of the author. 



AGLAOPHENIA GRACILLIMA Fewkes. 



(Plate XXIII, figs. 6-8.) 

 4t/taot>he.ni<i i/ruciUima FEWKES, Bull. Mus. Comp. Zool., 1881, VIII, No. 7, p. 131. 



Trophosome. 1 Colony uubranched or sparsely branching, attaining a height of about 3 inches; 

 stem not fascicled, divided into regular internodes, each of which bears a hydrocladium; hydro- 

 cladia rather closely approximated, alternate, divided into regular internodes, each of which has 

 its cavity partly divided by about four septal ridges behind the hydrotheca. Hydrotheca closely 



v Description and figures from type specimen kindly sent me by Doctor Walter Faxon from the Museum of Com- 

 Darative /oology. 



