821 |
Springsteen, F.J. and F.M. Leobrera 1986 Shells of the Philippines. Carfel Seashell Museum. Metro Manila, Philippines. 377 p. |
1986 |
Umbonium elegans |
34;pl.5 |
833 |
Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. Brooks/Cole, Thomson Learning learning, Inc. 990 p. |
2004 |
Umbonium elegans |
--> |
8326 |
Poppe, G.T., S.P. Tagaro and H. Dekker 2006 The Seguenziidae, Chilodontidae, Trochidae, Calliostomatiidae & Solariellidae of the Philippine Islands with the description of 1 new genus, 2 new subgenus, 70 new species and 1 new subspecies. Visaya Supplement 2. Conchology, Inc. Occasional Publications. |
2006 |
Umbonium elegans |
--> |
86518 |
Poppe, G.T. 2008 Philippine marine mollusks. Vol. 1 (Gastropoda - Part 1). ConchBooks. 759 p. |
2008 |
Umbonium elegans |
100, 214, pl 52 |