198 APPENDIX. 



Subgenus DRYPTUS Alb. 

 S. MARMORATUS Dkr. (p. 40). 



Reported from the colony of Tovar, Venezuela (Simon /) by Jous- 

 seaurne (Mem. Soc. Zool. Fr., ii, 1889, p. 243). 



Subgenus THAUMASTUS Alb. (p. 43). 



Add the synonym : Orphaicus SCHAUFUSS, Psetels Catal., 1869, 

 p. 14. 



S. SANGO.E Tschudi (p. 45). Add the synonym . pangoce Morel., 

 Ser. Conch., iii, p. 155. The Pangoa is a river rising in the heights 

 of Andamarca, and giving its name to the valley which it waters 

 in the lower part of its course. 



S. YANAMENSIS Morel, (p. 54). PI. 44, figs. 79, 80 (young shells). 



In the young shells of 12 mill, long, 2 whorls or younger, the last 

 whorl is always ornamented with three continuous bands. With 

 increase these become punctate or broken, and disappear on the last 

 whorl. 



S. BREPHOIDES Orb. (p. 57). Reported from Amable Maria, Peru 

 (Jelki). See P. Z. S., 1879, p. 722. 



S. ISERNI Phil. (p. 57). Also collected at Amable Maria (Jelski). 

 The name stands tserni in P. Z. S., 1879, p. 722. 



S. BIT.ENIATUS Nyst (p. 58). Junin, Peru (Jelski). P. Z. S., 1879, 

 p. 722, as B. bifasciatus. 



S. HARTWEGI Pfr. (p. 52). Cuenca, valley of Quito ( Orton). See 

 Journ. de Couch., 1871, p. 316. 



S. THOMPSONI Pfr. (p. 53). Cuenca, valley of Quito (Orton). L. c. 



S. ALUTACEUS Reeve (p. 59). Valley of the Utcubamba, N.-E. 

 Peru (Stub el), Conch. Mittheil., p. 157. Amable Maria, Peru 

 (Jelski), P. Z. S, 1879, p. 724. 



S. PORPHYREUS Pfr. (p. 60). Chota, Peru (Jelski). P. Z. S., 1879, 

 p. 722. 



Genus PLEKOCHEILUS Guilding. 



P. AURISSILENI Born. (p. 65). Referred to by SMITH, Proc. Mai. 

 Soc. Lond., i, p. 306. 



P. COLORATUS Nyst. (p. 74). In the text I neglected to state that 

 the form of this species found by Schlim at Ocana, and figured by 

 Pfr. in Novit. Conch., p. 29, pi. 8, f. 4, 5, has been called var. 



