Verrill.] 390 [April 7, 



tilinear, the articulated edge rounded. Upper arm-plates very broad 

 and comparatively short, the breadth equal to about five times 

 the .length; the outer edge with a slight notch or emargination ; 

 many of the plates are irregularly broken into two or three pieces. 

 Two arm-siDines on the first plate; three on the second ; four on the 

 third ; five on the fourth ; seven on the fifth ; eight on the sixth ; nine 

 on the seventh ; ten on the eighth ; and eleven on the succeeding 

 ones, as far as the middle of the arms. These spines are closely 

 crowded, appressed, mostly oblong, with blunt points, about two thirds 

 as long as the breadth of the side arm-plates ; the upper ones smaller 

 and shorter; the lowest one larger and stouter than the rest. 



Color of the disk uniform yellowish brown in the dry specimen, 

 arms, above, brownish yellow with an orange tinge, thickly covered 

 with small, round, purplish brown spots, some of which occur also on 

 tlie upper arm-spines and upper part of the side arm-plates. Lower 

 surface uniform dull yellow. 



Radius of disk .80 inch; length of arms from centre of disk 7.25 to 

 8; breadth of arm at base .32; height .30; length' of upper arm- 

 plates .08 ; length of middle arm-spines .05 ; length of third under 

 arm-plate .07 ; breadth .09; length of tenth .07 ; breadth .08 ; length 

 of mouth-shield .16; breadth .21; length of second mouth-papilla 

 .06 ; breadth .08. 



New Zealand; Chas. Cheever, 1848. (Coll. Essex Institute). 



Ophionereis porrecta Lyman. 



Catalogue of Ophiuridaj and Astropht. of Mus. of Comp. Zoology, 

 p. 147, 1865. 



Ophionereis crassispina Ljungman, Ophiuroidea Viventia, Ofv. 

 Kongl. Vet.-Akad. Forhandl., 1866, p. 311. 



Through the courtesy of Mr. Lyman I have been able to compare 

 one of his original specimens with several in the Museum of Yale 

 College, dredged at Maui, by Dr. C. Pickering. They agree per- 

 fectly in all respects, so that there can be no doubt but that its true 

 locality is the Hawaiian Islands. It was doubtfully given as a Florida 

 species by Mr. Lyman. 



Ljungman's description of O. crassispina agrees perfectly with our 

 specimens of the same size (disk 8 """• in diameter). His specimens 

 were from Honolulu. 



O. squamaia Ljung., from the same locality, appears from the de- 

 scription to differ but slightly, except in size (disk 13 '™'- in diameter), 

 and may well prove to be only the mature form of the same species. 



