REPORT ON THE HEXACTINELLIDA. 303 



meshed dictyonal framework are somewhat thickened and slightly spinosc. The paren- 

 chymalia contain, besides the uncinates, disposed at right angles to the bounding surfaces, 

 and small rough oxyhexacts, small disco- and sphsero-hexastcrs, with four moderatelj' 

 long terminals on each of the short principal rays. Both the dermal and the gastral 

 scopulie exhibit a marked and sharp dislocation on their four to six terminal prongs, 

 which are equipped with pear-shaped terminal knobs bearing lateral barbs. Near the 

 Little Ki Island, 140 fathoms. 



Species 4. Eurete carteri, n. sj). 



Somewhat narrow -meshed anastomosing systems of tubes 3 to 10 mm. in width, 

 which open externally by round or oval apertures not only terminally but also laterally. 

 The somewhat irregular dictyonal framework exhibits spinose beams with but slight!}- 

 thickened nodes of intersection, varying in diifferent regions, but tolerably constant in 

 the development of spines. The parenchyma contains, besides the radially disposed 

 uncinates and numerous small oxyhexacts, irregularly scattered small discohexasters with 

 short principal rays, and moderately long, irregularly imdidating terminals, three of 

 which usually occur on each principal. Both the dermal and gastral scopulae have four 

 to six straight or slightly curved, but never dislocated terminal prongs with barbed 

 terminal knobs. Near the Little Ki Island, 140 fathoms; Sagami Bay, Japan, 150 

 fathoms. 



Species 5. Eurete marshalli, n. sp. 



A somewhat wide-meshed framework of tubes of varying width (3 to 8 mm.), with 

 round terminal excurrent apertures. The dictyonal framework with its predominantly 

 square meshes exhibits, as in Eurete farreopsis, Carter, somewhat thickened and spinose 

 nodes of intersection. The parenchyma contains, besides the I'adial uncinates and small 

 oxyhexacts, also oxyhexasters with short principal rays, each with three to five long 

 terminals. The dermal and gastral scopulse exhibit no dislocation of the four terminal 

 prongs which end in club-shaped barb-beset extremities. Near the Little Ki Island, 140 

 fathoms. 



Species 6. Eurete howerhankii, n. sp. 



The single fragment as yet known consists of a funnel-shaped expanded tubide 

 3 to 10 mm. in diameter, provided with lateral branches 5 mm. in breadth. The 

 somewhat irregular dictyonal framework consists of slightly spinose beams ^-ithouL 

 markedly thickened nodes of intersection. The parench}Tna contains, besides the radial 



(ZOOL. CHALL. EXP. — PART LIII. 1887.) Ggg 50 



