30 



MOLLUSCA IN THE MaYA LoWLANDS 



riphery of peninsula, from Water Cay, B.H., to 

 Isla Carmen, Camp. 

 Archaeological occurrence: 



DZIBILCHALTUN: 9 unworked, eight Forma- 

 tive, one Pure Florescent. 



MAYAPAN: Mentioned as found, probably De- 

 cadent period (P, p. 387). 



TIKAL: Moholy-Nagy mentions "8 Anomalo- 

 cardia sp., unmodified," probably this species, not 

 dated (M-MS). 



Transennella cubaniana (d'Orbigny) 



Illustration: Warmke and Abbott, 1961, pi. 39,^. 



Modern distribution: Collected at Isla Mujeres and 



Isla Cancun, Q.R., on east coast; only at Chavihau, 



Yuc, on north coast. 

 Archaeological occurrence: 



DZIBILCHALTUN: 4 valves, unworked, in Late 



Early period cache. 



Comment: These tiny pelecypods might have been 

 included inadvertently in beach drift inside large 

 conchs in cache. 



Macrocallista maculata (Linne) 



Illustration: Plate T-^,g,gg. 



Modern distribution: Common on all three coasts, 



from Isla Mujeres, Q.R., to Isla Carmen, Camp. 



Also at Cayo Areas. 

 Archaeological occurrence: 



DZIBILCHALTUN: 2 unworked, in unstratified 



deposits. 



MAYAPAN: 2, with sawed hole below umbo 



for suspension, probably Decadent period (P, fig. 



44,;', not in text). 



Dosinia concentr'ica (Born) 



Illustration: None. 



Modern distribution: Not collected on peninsula. 



Archaeological occurrence: 



MAYAPAN: See discussion of D. degans below. 



Dosinia discus (Reeve) 



Illustration: None. 



Modern distribution: Not collected on the peninsula. 



Archaeological occurrence: 



TIKAL: I unworked (M-MS). As this shell has 

 not been collected from peninsular waters, where- 

 as the very similar D. elegans is abundant on all 

 three coasts and at three archaeological sites, the 

 Tikal specimen may be the latter species. 



Dosinia elegans (Conrad) 



Illustration: Plate 19,/. 



Modern distribution: Collected only at Isla Contoy 

 on the east coast. Common on north and west 

 coasts, Isla Holbox, Q.R., to Isla Aguada, Camp. 



Archaeological occurrence: 



DZIBILCHALTUN: 11 unworked, in Forma- 

 tive, Early period and Florescent deposits, two as 

 offerings in Cenote Xlacah; i Late Early period 

 with single hole for suspension, i Formative 

 considerably altered with 2 drilled holes for 

 suspension. 



MAYAPAN: Proskouriakoff lists both elegans 

 and concentrica, illustrating only one, which is 

 captioned D. concentrica. As concentrica has not 

 been collected on the peninsula and the very simi- 

 lar but less inflated elegans is quite common on 

 the nearby coast, and as the local form had not 

 been established when this identification was 

 made, both specimens may be elegans (P, p. 387, 

 fig. 46,<r). 



ISLA CANCUN MIDDEN: i unworked. For- 

 mative. 

 TIKAL: See under D. discus above. 



Family: TELLINIDAE (tellins) 



Tellina lineata Turton 



Illustration: Plate io,c,cc. 



Modern distribution: On east coast, collected only 



on Water, Corker, and Chapel Cays, B.H. Very 



common on north and west coasts, from Isla 



Holbox, Q.R., to Isla Carmen, Camp. Also at 



Cayo Areas. 

 Archaeological occurrence: 



DZIBILCHALTUN: i unworked, in Formative 



deposit. 



MAYAPAN: i unworked, probably Decadent 



period (P, p. 387). 



Tellina listeri Roding 



Illustration: Plate 20, b,b'. 



Modern distribution: East coast, from Turneffe 

 Islands, B.H., to Puerto Juarez, Q.R. Also off- 

 shore atolls. 



Archaeological occurrence: 



ISLA CANCUN MIDDEN: 18 unworked. For- 

 mative. 



Tellma radiata Linne 

 Illustration: Plate 20, a, aa. 



