Andiorrhinus (Meridrilus)

Feijoo, Alexander, Brown, George G. & James, Samuel W., 2017, New species of Andiorrhinus Cognetti, 1908 (Oligochaeta: Rhinodrilidae) from Venezuela and Brazil, Zootaxa 4363 (1), pp. 55-78 : 76

Key to Andiorrhinus (Meridrilus) species

1a. Five pairs of spermathecae pores in 5/6–9/10 ............................................................. sp. 1

1b. Three pairs of spermathecae pores in 6/7– 8/9............................................................... 2

2a. Spermathecae with duct almost double the ovoid, flattened ampulla................................. kuika Righi, 1993

2b. Small, equal-sized spermathecae, invisible duct with strangulated area separating the seminal chambers of the ampulla..... 3

3a. Tubercula pubertatis in ½19, 19–23....................................................... timotocuica sp. nov.

3b. Tubercula pubertatis in ½19– ½24........................................................................ 4

4a. Calciferous gland with 16 parallel lamellae.................................................. guamo Righi, 1989

4b. Calciferous gland with 16–18 more or less parallel lamellae.................................................... 5

5a. Tubercula pubertatis in ¼ 19–23.......................................................... boconius Righi, 1989

5b. Tubercula pubertatis 20– ½ 23........................................................................... 6

6a. Clitellum in 16, 17–24..................................................................... torondoy sp. nov.

6b. Clitellum in 16–25..................................................................................... 7

7a. Esophagus-intestine transition in 18................................................ rimeda Righi & Araujo, 2000

7b. Esophagus-intestine transition in 24/25.................................................... mukuci Righi , 19938