Marine Species 



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

 Collected at Alacran Reef. 

 Archaeological occurrence: 

 DZIBILCHALTUN: 6 unworked (two Forma- 

 tive, one Late Early period, one probably Decadent 

 period, two unstratified); 6 worked fragments of 

 body whorl (three Formative, three Late Early 

 period), each a triangular pendant, with 2 per- 

 forations at top for suspension. 

 LABNA: i, pierced near base for suspension, 

 probably Pure Florescent (E. H. Thompson, 

 1897^, pi. X,20, illustrated but not identified; 

 probably this species). 



MAYAPAN: Proskouriakoff lists 2 "small conch 

 trumpets" of Conus with "cut spires" (P, p. 384, 

 refers to fig. 47,/ and m, but/ is missing). The 

 illustration is surely this species. I agree with 

 Proskouriakoff in questioning the use of these 

 small shells as trumpets. 



ISLA CANCUN MIDDEN: 3 unworked. For- 

 mative. 



TIKAL: I unmodified (M, p. 67, date not listed); 

 I tinkler, probably late Formative (Cauac); i 

 tinkler. Early Classic (M-MS). 



Family: TEREBRIDAE (augers) 



Terebra {}) dispar Deshayes 

 Illustration; None. 

 Modern distribution: Not collected. 

 Archaeological occurrence: 



SAN JOSE: 5 unworked from S.J. IV cache (T, 



p. 180). 



Comment: T. dispar is a West Indian species, not 

 collected in peninsular waters. As the identity is 

 queried by the author, I suggest that the specimens 

 may be what we now know is the common augur 

 in these waters, Terebra cinerea (Born), and which 

 is very similar to the exotic dispar (Warmke and 

 Abbott, 1961, pi. 25,^). 



Family: BULL/D^E (bubbles) 



Bulla occidentalis A. Adams 



Illustration: Plate 21,//. 



Modern distribution: Common on all three coasts, 

 from Water Cay, B.H., to Isla Carmen, Camp. 



Archaeological occurrence: 



DZIBILCHALTUN: 4 unworked, one Forma- 

 tive, two Late Early period (i in cache), one in 



Cenote Xlacah; i clearly fossil, but much hand- 

 rubbed specimen obviously kept for some purpose, 

 in Late Early period deposit. 



Family: AURICULIDAE (coffee beans) 



Melampus cogens (Linne) 



Illustration: Plate 6, /,/;'. 



Modern distribution: All three coasts, from Turnefle 

 Islands, B.H., to Isla Aguada, Camp. Collected 

 at Cayo Areas. 



Archaeological occurrence: 



ISLA CANCUN MIDDEN: 2 unworked, For- 

 mative. 



Class: SCAPHOPODA 



Family: DENTALIIDAE (tooth shells) 



Dentalium texasianurn cesium Henderson 



Illustration: See below. 



Modern distribution: Collected by us only on Cayo 

 Norte, Chincharro Banks. Richards and Boekel- 

 man (1937) note it has been collected from 

 Monkey River, B.H. 



Archaeological occurrence: 



"RIO HOK SKUM" (near Corozal, B.H.), i un- 

 worked, in burial mound dug by Thomas Gann 

 (Richards and Boekelman, 1937, pp. 167—68, 

 pi. 6, no. 4). 



Comment: Willey notes 25 beads of Dentalium (not 

 identified as to species), with a similar number of 

 sea-urchin spines from a Spanish Lookout Phase 

 burial (W, pp. 509, 526, fig. 309,/^). Note Richards' 

 and Boekelman's ideas cited above. 



Class: PELECYPODA 



Family: ARCIDAE 



Area imbricata Bruguiere [^ A. umbonata La- 

 marck] 



Illustration: Plate 13, a, aa. 



Modern distribution: Common on the entire coast 

 of peninsula, Turnefle Islands to Isla Carmen. 

 Also on the offshore atolls. 



Archaeological occurrence: 



ISLA CANCUN MIDDEN: 9 unworked. For- 

 mative. 



PIEDRAS NEGRAS: i unworked, in Late Clas- 

 sic cache (C, p. 55). 



