Published in Transactions of the San Diego Society of Natural History, in 1989, in volume 21, pages 259-273

Published in Transactions of The San Diego Society of Natural History, in 1989, in volume 21, pages 275-282

Published in Transactions of The San Diego Society of Natural History, in 1989, in volume 21, pages 283-290

Published in Transactions of The San Diego Society of Natural History, in 1989, in volume 21, pages 291-316