NO. 1658. ALCYONARIA OF THE CALIFORNIAN COAST— NUTTING. 709 



Distribution.—StsitioTi 4427, Point San Pedro, Santa Cruz Island, 

 N. 35° E. 7 miles, 447 fathoms; Station 4432, Brockway Point, 

 Santa Rosa Island, S. 8 miles, 372 fathoms; Station 4442, Point Pinos 

 light-house S. 67° W. 4.6 miles, 26-31 fathoms; Station 4435, Harris 

 Point, San Miguel Island, S. 13° W. 7.7 miles, 287-274 fathoms; 

 Station 4514, Point Pinos light-house S. 39° E. 10.7 miles, 524 

 fathoms. 



Type-locality.— St&tion 3389, latitude 7° 16' 45'' N., longitude 

 79° 56' 30" W., 210 fathoms. 



STACHYPTILUM QUADRIDENTATUM, new species. 



Plate LXXXVII, figs. 7 and 8. 



Total length of colony, 200 mm. ; stem, 68 mm. Bulb and swelling 

 almost continuous, and not much expanded. The swelling is quad- 

 rangular in section. 



The polyps are irregularly placed on the dorsal surface of the 

 rachis, with a tendency to an arrangement in transverse rows of 

 three or four. The larger ones are usually laterally placed, and 

 include the smaller ones between their bases, the smaller ones usually 

 being inserted at a higher level than the larger. On the lower portion 

 of the rachis there is a tendency to an arrangement in subopposite 

 pairs; higher up the smaller one or two polyps appear between the 

 larger, while nearer the distal end there are frequently three larger 

 ones in the oblique series. Here, however, the polyps are so crowded 

 that it is difficult to discern any regularity. 



The calyces are rather long, narrowing above, with the margin 

 bearing four very strong sharp teeth or spines, two larger and two 

 shorter, on its outer side. 



Length of calyces to end of longest spines, 3 mm. 



The polyps are retractile, and when fully retracted the spines con- 

 verge, forming a pointed calyx. 



There are a few lateral zooids scattered along the sides of the 

 rg-chis between the polyps, and others between polyps on the dorsal 

 surface. The zooids vary considerably in size, the dorsal ones often 

 being the larger. 



The spicules are needle-like, arranged longitudinally in calycular 

 walls, stem, and rachis. 



Color. — Almost white, in alcoholic specimens. 



Type-specimen.— Cdit. No. 25428, U.S.N.M. 



Distribution. — Station 4360, Point Loma light-house N. 86° 30' E. 

 9.4 miles, 108-92 fathoms (type-locality); Station 4371, Point Loma 

 light-house N. 84° E. 9.5 miles, 145-89 fathoms. 



In the collection of the University of California are several speci- 

 mens apparently of this species labeled "Juneau, Alaska, dredged 

 20 fathoms." 



