126 Mr. W. D. Rotcli on a new Genus of Iljjdroid Zoopliytes. 



in front ; thorax for tlio most part pale ocliraceous, but with 

 the scales cliestnut-tippedj and with two lateral pitchy streaks 

 uniting over the back ; abdomen blackish grey, segments 

 somewhat ochraceous ; a lateral series of six or seven black 

 spots ; anus clothed with pale ochreous hairs and surrounded 

 by a zone of radiating, semitransparent, red-brown, padclle- 

 shai)ed scales, about half an inch long. 



Wings below pale ochreous ; a common waved dusky discal 

 line ; margin narrowly edged v/ith very light oclireous ; a 

 series of submarginal black spots between nervures : primaries 

 with medio-discoidal area dusky ; base, inner margin, and 

 basal half of second median interspace whitish ochraceous : 

 secondaries with large black spot at end of cell ; fringe white, 

 spotted with brown : body below for the most part pale ochre- 

 ous ; head, front and hind legs, and anus, excc]:)t valves, red- 

 brown ; two long curved tufts of carmine hairs at base of 

 abdomen. 



Expanse of wings 3 inches 3 lines. 



Hah. Java, Batavia. Coll. Cornthwaite. 



The scales on the tail of this extraordinary moth are very 

 similar to those occurring on the bodies of many Lepidoptcrous 

 insects as seen under a high magnifying-power. 



The genus comes nearest to Duduna. 



XVIII. — On a neio Genus and Species of Ilydroid Zoo]jliytes. 

 By W. D. EOTCH, Esq. 



Staurocoryne, no v. gen. 



Gen. diar. — Stem simple, rooted by a eree]3ing filiform 

 stolon, the whole invested by a polypary. Polypites terminal, 

 clavate, Avith several verticils of capitate tentacula disposed 

 in the form of a cross. 



Staurocoryne differs from Coryne in its mode of growth and 

 the disposition of its tentacles. Its mode of growth closely 

 resembles that of CJadonema ] and it is equally slender and 

 hyaline. 



In the cross-like disposition of its tentacles it nearly re- 

 sembles Stauridium. Its reproduction is unknown. 



Staurocoryne Wortleyi, nov. sp. 



Stem simple, of extreme tenuity; polypary hyaline and smootli ; 

 jDolypites clavate, with 12 tentacles (when fully grown) 

 disposed in 3 whorls of 4 tentacles each ; gonophorcs not 

 known. 



