NO. 1559. NEW RECENT UNSTALKED CRINOIDS—CLABK. 75 



7. ANTEDON LAODICE, new species. 



Centro-dorsal low, hemi.spherical, bearing- about 40 c-irri ; these are 

 40 min, long-, with 40 joints, the basal half of which are longer than 

 wide, the distal short and furnished with low spines. 



First radials partiall}^ visible; second radials short, ol)long-, incised 

 by a backward projection of the axillary; axillaries about as wide as 

 high, with a backward projection forming a tubercle; 10 arms; first 

 brachial irregularly quadrate, with a short inner and long outer bor- 

 der; second brachial almost triangular; following brachials quadrate, 

 becoming triangular after the fourteenth or fifteenth; syz3'gies in the 

 third, eighth, and twelfth or thirteenth brachials, and distally at 

 intervals of ?> joints. 



Two first pinnules 20 mm. long, slender and flagellate, with 50 ver}- 

 short joints; third pinnule 22 mm. long with 46 joints; the fourth 

 shorter; fifth and sixth much shorter, with the joints more elongate. 

 The first 4 pinnules bear combs. 



Color in life lemon yellow, the cirri lighter. 



Ti/pe.—Ciit. No. 22609, U.S.N.M.; from .#^>«/my.s- station No. 4l)61>; 

 33^ 23' 40" north latitude, 135=^ 33' 00" east longitude (off southern 

 Japan); 587 fathoms; August 29, 1906. 



8. ANTEDON ESCHRICHTII (J. Muller.) 



The specimens of this species obtained in the Okhotsk Sea and the 

 Sea of Japan appear to be structurally identical with others from 

 Europe and the Atlantic coast of America, l)ut tiie size is much greater, 

 the extent reaching 700 mm. and the cirri 115 mm., as against a maxi- 

 mum of 500 mm. and 70 mm., as given by Dr. P. Herbert Carpenter 

 in the Challenge i'*^^ report. Antedon eschricJit!! in the Pacific has a 

 remarkably restricted range, being found only in the Sea of Okhotsk, 

 about southern Sakhalin and La Perouso straits, in parts of the Gulf of 

 Tartar}', and in the northern part of the Sea of Japan. On the southern 

 and eastern shores of Japan, along the Kurils and in the Bering Sea it is 

 replaced by quite difl'erent species. Considering the isolated and cir- 

 cumscribed habitat of this species in this region, together with its 

 uniformly greater size, it seems best to bestow upon it, for the present 

 at least, the varietal name of Antedon eHdirlcktli maxima^ taking as 

 the type-locality 43^ 01' 35" north latitude, 140^ 10' 40" east longi- 

 tude, in 248 fathoms, off the coast of Hokkaido, in the Sea of Japan. 



9. ANTEDON INEXPECTATA, new species. 



This species resembles Antedon asperrhna and ^4. perplexa in gen- 

 eral appearance, but the third pinnule is distinctly smaller than the 

 first and second (which are about equal in size), f recjuently ver}^ much 



« Challenger Keports, Report on the Crinoidea, Zo(")logy, xxvi, p. 139. 



