dall: mollusca and bkachiopoda. 443 



L-IOTHYRIIVA Oehlebt. 



Liothyrina uva Brodehip. 



This species was originally described from shallow water, 8 to 12 fathoms, off 

 the west coast of Mexico, near the Isthmus of Tehuanteptc. This being the 

 case, it must live there iu water of high temperature, probably about 65° F. I 

 have an authentic specimen from sliallow water on the coast of Peru. One char- 

 acteristic of this species, almost unique in its group, is the presence of slightly 

 elevated radiating lines visible only with a good light and under tlie lens. Fischer 

 and Oehlert, in their report on the brachiopods of Cape Horn, figure some shells 

 under the name of Liothyrina noseleyi Dav., which are lately referred by Bloch- 

 mann,^ on the strength of a specimen received from the Paris Museum, to L. uva. 

 It is entirely possible that the specimens referred to L. moseleyi were mixed, and 

 that a specimen of Z. uva was sent to Blochmann ; but the specimens figured by 

 Fischer and Oelilcrt are, as they state, more nearly circular iu outline than typical 

 L. uva, and come from water of a temperature between 6° and 8° C. (42°. 8- 

 44°. 4 F.), which is much colder than that in which L. uva is known to occur. 

 Moreover, the " Albatross" dredged a specimen, agreeing almost exactly with 

 the Z. moseleyi of the Antilles, 150 miles off the coast of Peru, in 2222 fathoms, 

 temperature 35°. 2 F., and dead valves near Cocos Island. So the presence of 

 Z. moseleyi in the cold waters of Cape Horn would not be extraordinary, while 

 if Z. uva is also present in that region one would expect to find it in the com- 

 paratively shallow water, which is somewhat warmer than that of the deeps. I 

 have not seen any specimens of Z. uva from south of Peru. 



Liothyrina moseleyi Davidson. 



U. S. S. " Albatross," station 465G, iu south latitude 6° 55' and west longi- 

 tude 83° 3i', iu 2222 fathoms, mud, bottom temperature 35°.2 F. U. S. N. Mus. 

 110,744. Also (dead valves, probably of this species) at station 3370, in 134 

 fathoms, near Cocos Island, temperature 54°. 8 F. 



The original locality of this species was west of Kerguelen Island, " Chal- 

 lenger" expedition, station 148, iu 210 fathoms, rocky bottom. 



A specimen believed to be of the same species was obtained off Martinique, 

 West Indies, iu 169 fathoms, temperature 51° F. It was identified by Mr. 

 Davidson as being his species. 



Liothyrina clarkeana Dall. 

 Liothyrina clarkeana Dall, rroc. U. S. N. Mus., 1895, 17, p. 718, pi. 31, figs. 9, 10. 



U. S. S. " Albatross," station 3362, Gulf of Panama, in 1175 fathoms, mud, 

 bottom temperature 30°.8 F. U. S. N. Mus. 107,275. Also at station 4709, 

 southwest of the Galapagos Islands, iu 2035 fathoms, ooze, temperature 35° F. 



A single specimen was obtained iu each instance. 



1 Zool. Anzeiger, Sept., 1900, 30, p. 698. 



