SCAPHOPODA, Bronn, 1862

Groves, Lindsey T. & Squires, Richard L., 2018, Annotated Catalog of the Fossil Invertebrates Described by, and Named for, William More Gabb (1839 - 1878), Zootaxa 4534 (1), pp. 1-150 : 110-111

SCAPHOPODA

affine (Dentalium) Gabb, 1872d: 244, unfigured. Dominican Republic; Miocene. [Junior homonym of Dentalium affine Blondi, 1859 ]. Type Material: “Types” ANSP 2711 [= syntype, Steiner & Kabat 2004: 559] ( Richards 1968: 207). Remarks: Gabb's homonym renamed Dentalium gabbi Pilsbry & Sharp, 1897: 470–471 .

cooperi (Dentalium) Gabb, 1864b: 139, pl. 21, fig. 100. San Diego, California; so-called Cretaceous = Eocene ( Keen & Bentson 1944: 123). Type Material: “ Type lot?” ANSP 13144 ( Richards 1968: 207). Remarks: Anderson & Hanna (1925: 143) stated that the type locality has been difficult to ascertain and noted “since Dr. Cooper really made collections at Rose Canyon near San Diego, from which Gabb described certain species, it is entirely probable that the type of D. cooperi came from there.” Dentalium (Antalis) cooperi Gabb , according to Shimer & Shrock (1944: 523).

haytensis ( Dentalium ) Gabb, 1872d: 244, unfigured. Dominican Republic; Miocene. Type Material: Holotype ANSP 2715 ( Woodring 1925: 203); “type” Richards (1968: 208). Remarks: Pilsbry & Sharp (1897: 471, pl. 11, figs. 8–9) figured the type. Dentalium (Laevidentalium) haytense Gabb , according to Woodring (1925: 202–203, as holotype).

minutistriatum (Dentalium) Gabb, 1860i: 386, pl. 67, fig. 46. Town Branch of Cedar creek near Wheelock, Robertson Co., Texas; Eocene = Wheelock Member, Cook Mountain Formation, Claiborne Group ( Palmer & Brann 1965: 368; Hodgkinson 1974: 21–22). Type Material: “ Types ” ANSP 13264 ( Richards 1968: 208). Remarks: Dentalium (Antalis) minutistriatum (Gabb) , according to Hodgkinson (1974: 22).

ponderosum ( Dentalium ) Gabb, 1872d: 244–245, unfigured. Dominican Republic; Miocene. Type Material: Syntypes ANSP 2708 ( Richards 1968: 209). Remarks: Pilsbry & Sharp (1897: 470, pl. 10, figs. 1 –3, pl. 11, figs. 15–16) figured the type. Dentalium (Tesseracme) dissimile ponderosum Gabb , according to Woodring (1925: 200– 201).

pusillum ( Dentalium ( Ditrupa ?)) Gabb, 1864b: 139, pl. 21, fig. 99. [Junior homonym of Dentalium pusillum Philippi, 1836 ]. Northeast of Martinez, Contra Costa Co., California; so-called Cretaceous = Eocene ( Anderson & Hanna 1925: 146). Type Material: Lectotype ANSP 79582 of Emerson (1957: 989). Remarks: Gabb’s species renamed Cadulus (Platyschides) gabbi by Pilsbry & Sharp (1898: 236). Emerson (1957: 985, 988–989, pl. 126, figs. 1 , 5) figured this scaphopod, discussed its taxonomic history, selected the lectotype, and supplemented Gabb's "inadequate original description and poor illustration…".

ripleyanum (Dentalium) Gabb, 1860i: 393, pl. 69, fig. 48 [not. pl. 68, fig. 17]. Ripley Group, Eufala [= Eufaula], Barbour Co., Alabama; Cretaceous. Type Material: “ Type ” ANSP ( Richards 1968: 209). Remarks: Whitfield (1892: 167) noted “this species is cited by Mr. Gabb [1861e] from New Jersey, on p. 49 of his synopsis” but was unable to find his description of the species and had seen no specimens he could identify with D. ripleyanum . rudis (? Dentalium ) Gabb, 1872d: 244, unfigured. Dominican Republic; Miocene. Type Material: “ Types?” ANSP 2716 ( Richards 1968: 209). Remarks: Type figured by Pilsbry & Sharp (1897: 471, pl. 10, figs. 4, 8). Appears to be a worm tube, according to Pilsbry (1922: 399). Not a scaphopod ( Steiner & Kabat 2004: 639).

stramineum ( Dentalium ) Gabb, 1864b: 139–140, pl. 21, fig. 101. Northeast of Martinez, Contra Costa Co., California; so-called Cretaceous = Eocene ( Keen & Bentson 1944: 123). Type Material: “ Type lot?” ANSP 13143 ( Richards 1968: 209).

subcoarcuata (Ditrupa) Gabb, 1860i: 386, pl. 67, fig. 47. Town Branch of Cedar Creek near Wheelock, Robertson Co., Texas; Eocene = Wheelock Member, Cook Mountain Formation, Claiborne Group ( Palmer & Brann 1965: 363). Type Material: “Types” ANSP 13263 ( Richards 1968: 192) (possibly lost according to Hodgkinson 1974: 20). Remarks: Palmer (1937: 24–25, pl. 78, fig. 1 ) figured the holotype. Cadulus (Polyschides) subcoarcuata (Gabb) , according to Hodgkinson (1974: 19–20). Unjustified emendation of Dentalium subcoarcuata Gabb , according to Steiner & Kabat (2004: 649).

Figures

FIGURE 1. William More Gabb in field gear (circa 1869). [Image courtesy of the University of California, Museum of Paleontology]