OPHIUBANS OF UNITED STATES NATIONAL MUSEUM. 3 



OpMolimna littoralis Koehler. 

 Ophioleda minima Kcehler. 

 Ophiotrema gracilis, new species. 



Ophiocamax fasciculate. Lyman. 

 Ophiologirmts secundus, new species. 

 Ophiochiton grandis Verrill. 



Ophiocamax austera Verrill. 



Family OPHIOCOMTD^]. 



Ophiocoma alexandri Lyman. 



Ophiocoma pumila Lutken. 



Ophiocoma echinata (Lamarck). Ophiocoma riisd Lutken. 



Family OPHIOTHRICID^E. 



Ophiothrix angv.la.ta (Say). 

 Ophiothrix lineata Lyman. 



Ophiothrix suensonii Lutken. 

 Ophiothrix convoluta, new species. 



Ophiothrix (erstedii Lutken. 



Family OPHIOSCOLECID^E. 



Ophioscolex glacialis Muller and Troachel. I Ophiobyrsella quadrispinosa, new species. 



Ophioleptoplax atlantica, new species. 



Family OPHIOCHONDRIDJE. 



Ophiochondrus granulatus, new species. | Ophfochondrus armatus (Koehler). 



Family OPHIOMYXID^E. 



Ophiomyxa flaccida (Say). | Ophiodera stimpsonii (Lyman). 



Family HEMTEURYALID^E. 

 Sigsbeia conifera, new species. | Sigsbeia sexradiata, new species. 



Family ASTKOCHEMID^E. 

 Astrochema elongatum, new species. | 



DESCRIPTIONS OF GENERA AND SPECIES. 

 Family OPHIODERMATID^E. 



OPHIODERMA APPRESSA (Say). 



(=0phioderma virescens Lutken..) 

 See for bibliography: 



Lyman (82),' p. 9. 

 Verrill (99), p. 6. 

 H. L. Clark (01), p. 242. 

 H. L. Clark (Ola), p. 340. 

 Verrill (07), p. 326. 

 Koehler (07), p. 280. 

 Kcehler (13), p. 353. 



Albatross station 2323. Jan. 17, 1885. Lat. 23 10' 51" N.; long. 82 19' 03" 

 W.; 163 fathoms; wh. br. co. One specimen. 



Albatross station 2337. Jan. 19, 1885. Lat. 23 10' 39" N.; long. 82 20' 21" 

 W.; 199 fathoms; co. One specimen. 



Fish Hawk station 7182. Nov. 28, 1901. Lat. 29; long. 83 18' 45" W.; 

 5f fathoms; rocky coral; temp. 15.3 C. Three specimens. 



Fish Hawk station 7215. Jan. 15, , 1902. Lat. 28 26' N.; long. 83 02' 30" 

 W.; 1\ fathoms; rocky coral; temp. 13 C. One specimen. 



i The figures in parentheses, printed in boldface type, refer to the bibliographic index at the end of the paper. 



