MAZATLAN UNIVALVES 447 



566. SCALAEIA , sp. ind. (a.) 



Tablet 2038 contains a minute shell of four whirls, measur- 

 ing '045 by '023, and a fragment displaying sculpture. It is 

 elongated, with very numerous (about 15) rounded varices, 

 strongly striated spirally. 

 Hob. Mazatlan ; 3 sp. on Spondylus ; L'pool Col, 



567. SCALAEIA , sp. ind. (1).) 



Tablet 2039 contains a minute shell, measuring '06 by '037, 

 consisting of 6 whirls, of which 4 are smooth and nuclear. It 

 differs from the corresponding portion of S. suprastriata in 

 having more numerous (12 sharp) varices, with smooth inter- 

 stices. 

 Sab. Mazatlan ; 1 sp. off Spondylus ; L'pool Col. 



568. SCALAEIA EAEICOSTATA, n. s. 



8. t. elongatd, gracili, awfractibus parum rotundatis ; suturd 

 parum impressd ; costis paucis, circiter viii. hand semper con- 

 venientibus, angustis, hand elevatis ; interstitiis Icevibus ; um- 

 bilico nullo. 



The only specimen found, of 6 whirls, though young, seems 

 to differ from the early state of all known West-coast species. 

 Long. '125, long. spir. '085, lat. '06, div. 33. 

 Hob. Mazatlan ; 1 sp. off Chama ; L'pool Col. 



Tablet 2040 contains the specimen. 



SUBGENUS CIESOTEEMA, Morel. 



H. A. Ad. Gen. vol. i. p. 223. Shell solid ; varices irregular ; 

 whirls generally cancellated. 



569. CIESOTEEMA FUNICULATA, ?n. s. 



C. t. subelongatd, graciliore, alba ; marginibus spires rectis ; 

 anfr. ix. prope suturam valde impressam acute angulatis ; 

 costibus variantibus (xv. xx.) hand acutis, angustioribus, ad 

 angulam coronatis, supra basin vix continuis ; anfr. ult. costis 

 plerumque obsoletis, varicibus paucis validis ; costd rotundatd, 

 suturam continuante t circa basin tumente, a costis radiantibus 



