236 BULLETIN 76, UNITED STATES NATIONAL MUSEUM 



istic aboul the marginal plates of chirophora, which arc identical with those of the 

 type of Lysasterias. If Paedasterias is maintained as a genus, it must be on the 

 strength of the large spatulate unguiculate, straight pedicellariae. But in P. jq 

 these are less developed than in chiropliora, while the lateral arcs are not those of 

 ■■i but of belgicae, in Ludwig's second group. If the pedicellariae are used as 

 a criterion for separation, then the structure of the skeleton must be disregarded. 



1. LYSASTERIAS ADEUAE iKoehlcr). 



An i ■ . 1920, pp. 10, 26, pi. 1, figs. 1, 2, 5-10. pi. 56, fig. 1. 



lie Land, 1 - fathoms. 



2. LYSASTERIAS BELGICAE (Ludwig). 



Anasterias belgicae Li dwig, 1903, p. 51, pi. 6, figs. 61-65; pi. 7, figs. 66-67. — Koehler, 

 1920, p. 17. 



Latitude 70° 15' S.; longitude S4° 06' W.; 560 meters. 



3. LYS \s l BR] IS < MIROPHORA (Lud«ir . 



1 asti la i irophora Ludwig, 1903. p. 43, pi. 5, figs. 52-54; pi. 6, figs. 55-60; pi. 7, fig. 78. 

 Paedasteria» <-lir<>p!i<>r<i Verrill, 1914, p 371. — Koehler 1920, p. 16. 



From latitude 70° 23' to 71° 19' S. and longitude 82° to 87° W., 450 meters. 



■I. LYSASTERIAS CDPULIFERA (Koehler). 



l asU ias cupulifera Koehler, 1908, p. 566, pi. 5, fig. 52, pi. 6, figs. 58, 59; 1920, p. 16. 

 South Orkneys, 10 fathoms. 



5. LYSASTERIAS JOFFREI (Koehler). 



Paedasterias joffrei Koehler, 1920, p. 30, pi. 1, figs. 3, 4, 9; pi. 2, figs. 7, 8, 9; pi. 56, fig. 2. 

 Latitude 66° 50' S.; longitude 142° 06' E.; 354 fathoms. 



6. LYSASTERIAS LACTEA (Ludwig). 



Anasterias lactea Ludwig, 1903, p. 50. — Koehler, 1920, p. 17. 

 Latitude 71° 09' S.; longitude 89° 15' W.; 450 meters. 



7. LYSASTERIAS PERRIERI iStuder). 



-4'"' Sti i.i i.\ Pit' Siv.-iniir Siiil-Goorgious, Jalirb. wiss. Anst. Hamburg, vol. 



2, 1SS5, p. 153.— Koehler, 1920, p. 17. 

 Anasterias lysasteria Verrtll, 1914,?p. 354 (unnecessary substitute name; see Fisher, 1922, 



p. 593). 



South Georgia. 



8. LYSASTERIAS STl'DERI (Perrier). 



Anasterias stvderi Perrier, Miss. sci. Cap Horn, 1891, p. 99. — Koehler, 1920, p. 17. 

 Near Atlantic entrance to Magellan Strait, 320 meters. 



9. LYSASTERIAS TENERA (Koehler). 



Anasterias tenera Koehler, 1900. p. 12; pi. 2, figs. 11-10; pi. 3, figs. 27, 28; pi. 4, fig 41; 

 1908, p. 569; 1912, p. 10; 1920, p. II. 17. 



South Shetland Islands; Graham Land; South Orkneys, Cumberland Bay. 

 South Georgia; 1 to 420 



