Patula jessica Hutton, 1883

Brook, Fred J., Kennedy, Martyn, King, Tania M., Ridden, Johnathon, Shaw, Matthew D. & Spencer, Hamish G., 2020, Catalogue of New Zealand land, freshwater and estuarine molluscan taxa named by Frederick Wollaston Hutton between 1879 and 1904, Zootaxa 4865 (1), pp. 1-73 : 28-29

Patula jessica Hutton, 1883

Pl. 3, fig. C

Hutton, 1883. New Zealand Journal of Science, 1: 475.

Type material. Lectotype (designated here), NMNZ M.34443 [ex M.125544], and paralectotypes, AIM MA72976 [formerly AM25433] (1), CMNZ M72 (5), CMNZ M1058 [ex ZS 715] (13), NMNZ M.125544 [ex H. Suter colln.] (9), (dry shells). Details in the CMNZ molluscan catalogue indicate that lot M9924 [ex M72] is also primary type material of Patula jessica Hutton, 1883 , and it was listed by Freeman et al. (1997: 31), but was not found during a search of the CMNZ molluscan collection in 2017.

Label details. AIM MA72976—‘ Ptychodon jessica (Hutton) , Bealey (Idt. H. Suter) (syntypes)’ in A.W.B. Powell’s handwriting; CMNZ M72—‘68. Patula jessica Hutton , Bealey’, pillbox label in Hutton’s handwriting; NMNZ M.125544—‘2039. Endodonta jessica, Hutton , Co-type specim., Hutt., Bealey’, in H. Suter’s handwriting.

CMNZ molluscan catalogue details. M1058—‘ Endodonta jessica Hutton, Bealey (old number ZS 715)’.

Type locality. ‘Bealey (Haast)’ ( Hutton 1883g: 475), ‘Bealey, Canterbury (Dr. v. Haast)’ ( Hutton 1884b: 174).

Previous illustrations of type material. Shell(s) illustrated by Pilsbry (1892 [in 1892–1893]: pl. 24, figs. 24–27, ‘H. Suter, del.’) and Suter (1915: pl. 9, figs. 15, a–c) may be from the type series.

Remarks. Hutton submitted a description of this species to the Transactions and Proceedings of the New Zealand Institute issue for 1883, but publication was delayed until May 1884 ( Hutton 1884b: 174), and was preempted by a brief description in an account of a meeting of the Philosophical Institute of Canterbury ( Hutton 1883g: 475). Hutton’s descriptions of Patula jessica were based on more than one specimen, and he did not designate a holotype. Climo (1969: 193) incorrectly stated that the ‘holotype’ was in Canterbury Museum, but this is not a valid lectotype fixation according to either Art. 74.5 or Art. 74.6 of the ICZN (1999) Code, because he was aware that the type material consisted of more than one specimen, and did not explicitly indicate that he was selecting a particular specimen to serve as the name-bearing type. Three paralectotype lots of P. jessica are mixed species assemblages: CMNZ M72 contains four specimens that are conspecific with the lectotype and one specimen of Charopidae sp. 45 (sensu Spencer et al. 2009); CMNZ M1058 contains ten specimens that are conspecific with the lectotype and three specimens of Charopidae sp. 45; and NMNZ M.125544 contains eight specimens that are conspecific with the lectotype and two of Charopidae sp. 45.

Current taxonomy. Fectola jessica (Hutton, 1883) — Climo (1978a: 186, 1989: 589), Spencer et al. (2009: 215).

Distribution. New Zealand; northern South Island ( Climo 1978a: 186, fig. 3; 1989: fig. 1B).