Cataleptodius olsoni R. B. Manning & Chace 1990

Cataleptodius olsoni

MATERIAL.—Manning 1971 Collection: Sta ASC-5, North East Bay: 5 males [2.4–3.6], 8 females [2.8–4.7], 4 ovig. [2.8–4.7].—Sta ASC-8, English Bay: 2 males [3.0–5.0], 3 ovig. females [3.1–4.2] (larger male.cl 5.0, is holotype.USNM 221887).—Sta ASC-11, English Bay: 4 males [2.6–3.8], 7 females [3.0–4.2], 3 ovig. [3.0–3.9], 10 juveniles [1.8–2.4].— Sta ASC-12, McArthur Point: 10 males [2.1–3.2], 5 females [2.3–4.3], 3 ovig. [3.1–3.7], 5 juveniles [1.4–2.1].—Sta ASC-13, Georgetown: 9 males [2.4–3.9],9 females [2.3–5.0], 3 ovig. [3.5–5.0], 8 juveniles [1.6–2.1].—Sta ASC-14, south of Collyer Point: 1 male [3.2].—Sta ASC-15, English Bay: 4 males [2.6–2.7],2 females [3.2–3.5], 1 ovig. [3.2],3 juveniles [1.7–2.2].—Sta ASC-21, English Bay: 2 males [2.8–3.0], 8 females [2.7–3.7],4 ovig. [3.4–3.7],5 juveniles [1.8–2.5].

Smithsonian 1976 Collection: Sta 1B-76, McArthur Point: 5 females [3.5–4.0], 1 ovig. [4.5].—Sta 1C-76, McArthur Point 1 male [2.9], 2 females [2.7–3.2], 5 juveniles [2.2].—Sta 3A-76, English Bay: 1 male [3.2].—Sta 3C-76, English Bay: 3 females [3.3–3.6], 1 juvenile [2.0].—Sta 3D-76, English Bay: 1 male [2.4].—Sta 5A-76, Shelly Beach: 1 female [4.2].—Sta 5D-76, Shelly Beach, coral pool: 2 males [2.6–2.8], 3 females [3.7–4.8],3 juveniles [1.4–1.8].

Grice Marine Biological Laboratory Collection: Sta 80–27, North East Bay, tide pool: 2 males [3.0–4.3], 1 ovig. female [3.2], 3 juveniles [1.3–2.1].—Sta 80–41, English Bay, tide pool: exuvium of female [3.0].

Operation Origin: Site 9, Kettle Cove.out of Lithothamnion nodules, 10 m: 1 male [3.0].

DESCRIPTION.—Carapace (Figure 35a) about 1½ times broader than long in adults.inflated.convex from front to back, completely covered with low granules visible under magnification. Areas of carapace poorly indicated.especially posteriorly, dorsal surface almost smooth in some specimens, grooves very shallow, no distinct ridges present. Front sinuous, incised medially.distinctly double-edged. All 5 anterolateral teeth very low, obtuse, poorly defined, separated by shallow emarginations. Lower margin of orbit (Figure 35b) evenly curved, with low, rounded inner tooth.

Chelipeds (Figure 35c,d) slightly unequal, granulate dorsally and on outer surface of palm, lacking distinct ridges, spines, or pits and grooves. Black color of immovable finger continued backwards on palm. Tips of all fingers spooned (Figure 35f, g).

Abdomen of male (Figure 35e) with segments 3–5 fused. Gonopod as illustrated (Figure 35f, g).

SIZE.—Carapace lengths of males, 2.1–5.0 mm; of females, 2.3–5.0 mm; of ovigerous females, 2.8–5.0 mm; of juveniles, 1.3–2.5 mm.

HABITAT.—Intertidal in tide pools, associated with rocks or in clumps of coralline algae; also taken in the coral pool at Shelly Beach.